diff --git a/packages/i18n/.gitignore b/packages/i18n/.gitignore
index 234a4de2c..806262293 100644
--- a/packages/i18n/.gitignore
+++ b/packages/i18n/.gitignore
@@ -9,6 +9,7 @@ cs
 de
 es
 fa
+fi
 fr
 hu
 id
diff --git a/packages/i18n/package.json b/packages/i18n/package.json
index 0d1339297..0c959030c 100644
--- a/packages/i18n/package.json
+++ b/packages/i18n/package.json
@@ -48,6 +48,7 @@
     "de",
     "es",
     "fa",
+    "fi",
     "fr",
     "hu",
     "id",
@@ -4519,6 +4520,746 @@
         "default": "./fa/words.cjs"
       }
     },
+    "./fi": {
+      "import": {
+        "types": "./fi/index.d.ts",
+        "default": "./fi/index.js"
+      },
+      "require": {
+        "types": "./fi/index.d.cts",
+        "default": "./fi/index.cjs"
+      }
+    },
+    "./fi/schema": {
+      "import": {
+        "types": "./fi/schema.d.ts",
+        "default": "./fi/schema.js"
+      },
+      "require": {
+        "types": "./fi/schema.d.cts",
+        "default": "./fi/schema.cjs"
+      }
+    },
+    "./fi/base64": {
+      "import": {
+        "types": "./fi/base64.d.ts",
+        "default": "./fi/base64.js"
+      },
+      "require": {
+        "types": "./fi/base64.d.cts",
+        "default": "./fi/base64.cjs"
+      }
+    },
+    "./fi/bic": {
+      "import": {
+        "types": "./fi/bic.d.ts",
+        "default": "./fi/bic.js"
+      },
+      "require": {
+        "types": "./fi/bic.d.cts",
+        "default": "./fi/bic.cjs"
+      }
+    },
+    "./fi/bytes": {
+      "import": {
+        "types": "./fi/bytes.d.ts",
+        "default": "./fi/bytes.js"
+      },
+      "require": {
+        "types": "./fi/bytes.d.cts",
+        "default": "./fi/bytes.cjs"
+      }
+    },
+    "./fi/check": {
+      "import": {
+        "types": "./fi/check.d.ts",
+        "default": "./fi/check.js"
+      },
+      "require": {
+        "types": "./fi/check.d.cts",
+        "default": "./fi/check.cjs"
+      }
+    },
+    "./fi/checkAsync": {
+      "import": {
+        "types": "./fi/checkAsync.d.ts",
+        "default": "./fi/checkAsync.js"
+      },
+      "require": {
+        "types": "./fi/checkAsync.d.cts",
+        "default": "./fi/checkAsync.cjs"
+      }
+    },
+    "./fi/checkItems": {
+      "import": {
+        "types": "./fi/checkItems.d.ts",
+        "default": "./fi/checkItems.js"
+      },
+      "require": {
+        "types": "./fi/checkItems.d.cts",
+        "default": "./fi/checkItems.cjs"
+      }
+    },
+    "./fi/checkItemsAsync": {
+      "import": {
+        "types": "./fi/checkItemsAsync.d.ts",
+        "default": "./fi/checkItemsAsync.js"
+      },
+      "require": {
+        "types": "./fi/checkItemsAsync.d.cts",
+        "default": "./fi/checkItemsAsync.cjs"
+      }
+    },
+    "./fi/creditCard": {
+      "import": {
+        "types": "./fi/creditCard.d.ts",
+        "default": "./fi/creditCard.js"
+      },
+      "require": {
+        "types": "./fi/creditCard.d.cts",
+        "default": "./fi/creditCard.cjs"
+      }
+    },
+    "./fi/cuid2": {
+      "import": {
+        "types": "./fi/cuid2.d.ts",
+        "default": "./fi/cuid2.js"
+      },
+      "require": {
+        "types": "./fi/cuid2.d.cts",
+        "default": "./fi/cuid2.cjs"
+      }
+    },
+    "./fi/decimal": {
+      "import": {
+        "types": "./fi/decimal.d.ts",
+        "default": "./fi/decimal.js"
+      },
+      "require": {
+        "types": "./fi/decimal.d.cts",
+        "default": "./fi/decimal.cjs"
+      }
+    },
+    "./fi/digits": {
+      "import": {
+        "types": "./fi/digits.d.ts",
+        "default": "./fi/digits.js"
+      },
+      "require": {
+        "types": "./fi/digits.d.cts",
+        "default": "./fi/digits.cjs"
+      }
+    },
+    "./fi/email": {
+      "import": {
+        "types": "./fi/email.d.ts",
+        "default": "./fi/email.js"
+      },
+      "require": {
+        "types": "./fi/email.d.cts",
+        "default": "./fi/email.cjs"
+      }
+    },
+    "./fi/emoji": {
+      "import": {
+        "types": "./fi/emoji.d.ts",
+        "default": "./fi/emoji.js"
+      },
+      "require": {
+        "types": "./fi/emoji.d.cts",
+        "default": "./fi/emoji.cjs"
+      }
+    },
+    "./fi/empty": {
+      "import": {
+        "types": "./fi/empty.d.ts",
+        "default": "./fi/empty.js"
+      },
+      "require": {
+        "types": "./fi/empty.d.cts",
+        "default": "./fi/empty.cjs"
+      }
+    },
+    "./fi/endsWith": {
+      "import": {
+        "types": "./fi/endsWith.d.ts",
+        "default": "./fi/endsWith.js"
+      },
+      "require": {
+        "types": "./fi/endsWith.d.cts",
+        "default": "./fi/endsWith.cjs"
+      }
+    },
+    "./fi/everyItem": {
+      "import": {
+        "types": "./fi/everyItem.d.ts",
+        "default": "./fi/everyItem.js"
+      },
+      "require": {
+        "types": "./fi/everyItem.d.cts",
+        "default": "./fi/everyItem.cjs"
+      }
+    },
+    "./fi/excludes": {
+      "import": {
+        "types": "./fi/excludes.d.ts",
+        "default": "./fi/excludes.js"
+      },
+      "require": {
+        "types": "./fi/excludes.d.cts",
+        "default": "./fi/excludes.cjs"
+      }
+    },
+    "./fi/finite": {
+      "import": {
+        "types": "./fi/finite.d.ts",
+        "default": "./fi/finite.js"
+      },
+      "require": {
+        "types": "./fi/finite.d.cts",
+        "default": "./fi/finite.cjs"
+      }
+    },
+    "./fi/graphemes": {
+      "import": {
+        "types": "./fi/graphemes.d.ts",
+        "default": "./fi/graphemes.js"
+      },
+      "require": {
+        "types": "./fi/graphemes.d.cts",
+        "default": "./fi/graphemes.cjs"
+      }
+    },
+    "./fi/hash": {
+      "import": {
+        "types": "./fi/hash.d.ts",
+        "default": "./fi/hash.js"
+      },
+      "require": {
+        "types": "./fi/hash.d.cts",
+        "default": "./fi/hash.cjs"
+      }
+    },
+    "./fi/hexColor": {
+      "import": {
+        "types": "./fi/hexColor.d.ts",
+        "default": "./fi/hexColor.js"
+      },
+      "require": {
+        "types": "./fi/hexColor.d.cts",
+        "default": "./fi/hexColor.cjs"
+      }
+    },
+    "./fi/hexadecimal": {
+      "import": {
+        "types": "./fi/hexadecimal.d.ts",
+        "default": "./fi/hexadecimal.js"
+      },
+      "require": {
+        "types": "./fi/hexadecimal.d.cts",
+        "default": "./fi/hexadecimal.cjs"
+      }
+    },
+    "./fi/imei": {
+      "import": {
+        "types": "./fi/imei.d.ts",
+        "default": "./fi/imei.js"
+      },
+      "require": {
+        "types": "./fi/imei.d.cts",
+        "default": "./fi/imei.cjs"
+      }
+    },
+    "./fi/includes": {
+      "import": {
+        "types": "./fi/includes.d.ts",
+        "default": "./fi/includes.js"
+      },
+      "require": {
+        "types": "./fi/includes.d.cts",
+        "default": "./fi/includes.cjs"
+      }
+    },
+    "./fi/integer": {
+      "import": {
+        "types": "./fi/integer.d.ts",
+        "default": "./fi/integer.js"
+      },
+      "require": {
+        "types": "./fi/integer.d.cts",
+        "default": "./fi/integer.cjs"
+      }
+    },
+    "./fi/ip": {
+      "import": {
+        "types": "./fi/ip.d.ts",
+        "default": "./fi/ip.js"
+      },
+      "require": {
+        "types": "./fi/ip.d.cts",
+        "default": "./fi/ip.cjs"
+      }
+    },
+    "./fi/ipv4": {
+      "import": {
+        "types": "./fi/ipv4.d.ts",
+        "default": "./fi/ipv4.js"
+      },
+      "require": {
+        "types": "./fi/ipv4.d.cts",
+        "default": "./fi/ipv4.cjs"
+      }
+    },
+    "./fi/ipv6": {
+      "import": {
+        "types": "./fi/ipv6.d.ts",
+        "default": "./fi/ipv6.js"
+      },
+      "require": {
+        "types": "./fi/ipv6.d.cts",
+        "default": "./fi/ipv6.cjs"
+      }
+    },
+    "./fi/isoDate": {
+      "import": {
+        "types": "./fi/isoDate.d.ts",
+        "default": "./fi/isoDate.js"
+      },
+      "require": {
+        "types": "./fi/isoDate.d.cts",
+        "default": "./fi/isoDate.cjs"
+      }
+    },
+    "./fi/isoDateTime": {
+      "import": {
+        "types": "./fi/isoDateTime.d.ts",
+        "default": "./fi/isoDateTime.js"
+      },
+      "require": {
+        "types": "./fi/isoDateTime.d.cts",
+        "default": "./fi/isoDateTime.cjs"
+      }
+    },
+    "./fi/isoTime": {
+      "import": {
+        "types": "./fi/isoTime.d.ts",
+        "default": "./fi/isoTime.js"
+      },
+      "require": {
+        "types": "./fi/isoTime.d.cts",
+        "default": "./fi/isoTime.cjs"
+      }
+    },
+    "./fi/isoTimeSecond": {
+      "import": {
+        "types": "./fi/isoTimeSecond.d.ts",
+        "default": "./fi/isoTimeSecond.js"
+      },
+      "require": {
+        "types": "./fi/isoTimeSecond.d.cts",
+        "default": "./fi/isoTimeSecond.cjs"
+      }
+    },
+    "./fi/isoTimestamp": {
+      "import": {
+        "types": "./fi/isoTimestamp.d.ts",
+        "default": "./fi/isoTimestamp.js"
+      },
+      "require": {
+        "types": "./fi/isoTimestamp.d.cts",
+        "default": "./fi/isoTimestamp.cjs"
+      }
+    },
+    "./fi/isoWeek": {
+      "import": {
+        "types": "./fi/isoWeek.d.ts",
+        "default": "./fi/isoWeek.js"
+      },
+      "require": {
+        "types": "./fi/isoWeek.d.cts",
+        "default": "./fi/isoWeek.cjs"
+      }
+    },
+    "./fi/length": {
+      "import": {
+        "types": "./fi/length.d.ts",
+        "default": "./fi/length.js"
+      },
+      "require": {
+        "types": "./fi/length.d.cts",
+        "default": "./fi/length.cjs"
+      }
+    },
+    "./fi/mac": {
+      "import": {
+        "types": "./fi/mac.d.ts",
+        "default": "./fi/mac.js"
+      },
+      "require": {
+        "types": "./fi/mac.d.cts",
+        "default": "./fi/mac.cjs"
+      }
+    },
+    "./fi/mac48": {
+      "import": {
+        "types": "./fi/mac48.d.ts",
+        "default": "./fi/mac48.js"
+      },
+      "require": {
+        "types": "./fi/mac48.d.cts",
+        "default": "./fi/mac48.cjs"
+      }
+    },
+    "./fi/mac64": {
+      "import": {
+        "types": "./fi/mac64.d.ts",
+        "default": "./fi/mac64.js"
+      },
+      "require": {
+        "types": "./fi/mac64.d.cts",
+        "default": "./fi/mac64.cjs"
+      }
+    },
+    "./fi/maxBytes": {
+      "import": {
+        "types": "./fi/maxBytes.d.ts",
+        "default": "./fi/maxBytes.js"
+      },
+      "require": {
+        "types": "./fi/maxBytes.d.cts",
+        "default": "./fi/maxBytes.cjs"
+      }
+    },
+    "./fi/maxGraphemes": {
+      "import": {
+        "types": "./fi/maxGraphemes.d.ts",
+        "default": "./fi/maxGraphemes.js"
+      },
+      "require": {
+        "types": "./fi/maxGraphemes.d.cts",
+        "default": "./fi/maxGraphemes.cjs"
+      }
+    },
+    "./fi/maxLength": {
+      "import": {
+        "types": "./fi/maxLength.d.ts",
+        "default": "./fi/maxLength.js"
+      },
+      "require": {
+        "types": "./fi/maxLength.d.cts",
+        "default": "./fi/maxLength.cjs"
+      }
+    },
+    "./fi/maxSize": {
+      "import": {
+        "types": "./fi/maxSize.d.ts",
+        "default": "./fi/maxSize.js"
+      },
+      "require": {
+        "types": "./fi/maxSize.d.cts",
+        "default": "./fi/maxSize.cjs"
+      }
+    },
+    "./fi/maxValue": {
+      "import": {
+        "types": "./fi/maxValue.d.ts",
+        "default": "./fi/maxValue.js"
+      },
+      "require": {
+        "types": "./fi/maxValue.d.cts",
+        "default": "./fi/maxValue.cjs"
+      }
+    },
+    "./fi/maxWords": {
+      "import": {
+        "types": "./fi/maxWords.d.ts",
+        "default": "./fi/maxWords.js"
+      },
+      "require": {
+        "types": "./fi/maxWords.d.cts",
+        "default": "./fi/maxWords.cjs"
+      }
+    },
+    "./fi/mimeType": {
+      "import": {
+        "types": "./fi/mimeType.d.ts",
+        "default": "./fi/mimeType.js"
+      },
+      "require": {
+        "types": "./fi/mimeType.d.cts",
+        "default": "./fi/mimeType.cjs"
+      }
+    },
+    "./fi/minBytes": {
+      "import": {
+        "types": "./fi/minBytes.d.ts",
+        "default": "./fi/minBytes.js"
+      },
+      "require": {
+        "types": "./fi/minBytes.d.cts",
+        "default": "./fi/minBytes.cjs"
+      }
+    },
+    "./fi/minGraphemes": {
+      "import": {
+        "types": "./fi/minGraphemes.d.ts",
+        "default": "./fi/minGraphemes.js"
+      },
+      "require": {
+        "types": "./fi/minGraphemes.d.cts",
+        "default": "./fi/minGraphemes.cjs"
+      }
+    },
+    "./fi/minLength": {
+      "import": {
+        "types": "./fi/minLength.d.ts",
+        "default": "./fi/minLength.js"
+      },
+      "require": {
+        "types": "./fi/minLength.d.cts",
+        "default": "./fi/minLength.cjs"
+      }
+    },
+    "./fi/minSize": {
+      "import": {
+        "types": "./fi/minSize.d.ts",
+        "default": "./fi/minSize.js"
+      },
+      "require": {
+        "types": "./fi/minSize.d.cts",
+        "default": "./fi/minSize.cjs"
+      }
+    },
+    "./fi/minValue": {
+      "import": {
+        "types": "./fi/minValue.d.ts",
+        "default": "./fi/minValue.js"
+      },
+      "require": {
+        "types": "./fi/minValue.d.cts",
+        "default": "./fi/minValue.cjs"
+      }
+    },
+    "./fi/minWords": {
+      "import": {
+        "types": "./fi/minWords.d.ts",
+        "default": "./fi/minWords.js"
+      },
+      "require": {
+        "types": "./fi/minWords.d.cts",
+        "default": "./fi/minWords.cjs"
+      }
+    },
+    "./fi/multipleOf": {
+      "import": {
+        "types": "./fi/multipleOf.d.ts",
+        "default": "./fi/multipleOf.js"
+      },
+      "require": {
+        "types": "./fi/multipleOf.d.cts",
+        "default": "./fi/multipleOf.cjs"
+      }
+    },
+    "./fi/nanoid": {
+      "import": {
+        "types": "./fi/nanoid.d.ts",
+        "default": "./fi/nanoid.js"
+      },
+      "require": {
+        "types": "./fi/nanoid.d.cts",
+        "default": "./fi/nanoid.cjs"
+      }
+    },
+    "./fi/nonEmpty": {
+      "import": {
+        "types": "./fi/nonEmpty.d.ts",
+        "default": "./fi/nonEmpty.js"
+      },
+      "require": {
+        "types": "./fi/nonEmpty.d.cts",
+        "default": "./fi/nonEmpty.cjs"
+      }
+    },
+    "./fi/notBytes": {
+      "import": {
+        "types": "./fi/notBytes.d.ts",
+        "default": "./fi/notBytes.js"
+      },
+      "require": {
+        "types": "./fi/notBytes.d.cts",
+        "default": "./fi/notBytes.cjs"
+      }
+    },
+    "./fi/notGraphemes": {
+      "import": {
+        "types": "./fi/notGraphemes.d.ts",
+        "default": "./fi/notGraphemes.js"
+      },
+      "require": {
+        "types": "./fi/notGraphemes.d.cts",
+        "default": "./fi/notGraphemes.cjs"
+      }
+    },
+    "./fi/notLength": {
+      "import": {
+        "types": "./fi/notLength.d.ts",
+        "default": "./fi/notLength.js"
+      },
+      "require": {
+        "types": "./fi/notLength.d.cts",
+        "default": "./fi/notLength.cjs"
+      }
+    },
+    "./fi/notSize": {
+      "import": {
+        "types": "./fi/notSize.d.ts",
+        "default": "./fi/notSize.js"
+      },
+      "require": {
+        "types": "./fi/notSize.d.cts",
+        "default": "./fi/notSize.cjs"
+      }
+    },
+    "./fi/notValue": {
+      "import": {
+        "types": "./fi/notValue.d.ts",
+        "default": "./fi/notValue.js"
+      },
+      "require": {
+        "types": "./fi/notValue.d.cts",
+        "default": "./fi/notValue.cjs"
+      }
+    },
+    "./fi/notWords": {
+      "import": {
+        "types": "./fi/notWords.d.ts",
+        "default": "./fi/notWords.js"
+      },
+      "require": {
+        "types": "./fi/notWords.d.cts",
+        "default": "./fi/notWords.cjs"
+      }
+    },
+    "./fi/octal": {
+      "import": {
+        "types": "./fi/octal.d.ts",
+        "default": "./fi/octal.js"
+      },
+      "require": {
+        "types": "./fi/octal.d.cts",
+        "default": "./fi/octal.cjs"
+      }
+    },
+    "./fi/partialCheck": {
+      "import": {
+        "types": "./fi/partialCheck.d.ts",
+        "default": "./fi/partialCheck.js"
+      },
+      "require": {
+        "types": "./fi/partialCheck.d.cts",
+        "default": "./fi/partialCheck.cjs"
+      }
+    },
+    "./fi/regex": {
+      "import": {
+        "types": "./fi/regex.d.ts",
+        "default": "./fi/regex.js"
+      },
+      "require": {
+        "types": "./fi/regex.d.cts",
+        "default": "./fi/regex.cjs"
+      }
+    },
+    "./fi/safeInteger": {
+      "import": {
+        "types": "./fi/safeInteger.d.ts",
+        "default": "./fi/safeInteger.js"
+      },
+      "require": {
+        "types": "./fi/safeInteger.d.cts",
+        "default": "./fi/safeInteger.cjs"
+      }
+    },
+    "./fi/size": {
+      "import": {
+        "types": "./fi/size.d.ts",
+        "default": "./fi/size.js"
+      },
+      "require": {
+        "types": "./fi/size.d.cts",
+        "default": "./fi/size.cjs"
+      }
+    },
+    "./fi/someItem": {
+      "import": {
+        "types": "./fi/someItem.d.ts",
+        "default": "./fi/someItem.js"
+      },
+      "require": {
+        "types": "./fi/someItem.d.cts",
+        "default": "./fi/someItem.cjs"
+      }
+    },
+    "./fi/startsWith": {
+      "import": {
+        "types": "./fi/startsWith.d.ts",
+        "default": "./fi/startsWith.js"
+      },
+      "require": {
+        "types": "./fi/startsWith.d.cts",
+        "default": "./fi/startsWith.cjs"
+      }
+    },
+    "./fi/ulid": {
+      "import": {
+        "types": "./fi/ulid.d.ts",
+        "default": "./fi/ulid.js"
+      },
+      "require": {
+        "types": "./fi/ulid.d.cts",
+        "default": "./fi/ulid.cjs"
+      }
+    },
+    "./fi/url": {
+      "import": {
+        "types": "./fi/url.d.ts",
+        "default": "./fi/url.js"
+      },
+      "require": {
+        "types": "./fi/url.d.cts",
+        "default": "./fi/url.cjs"
+      }
+    },
+    "./fi/uuid": {
+      "import": {
+        "types": "./fi/uuid.d.ts",
+        "default": "./fi/uuid.js"
+      },
+      "require": {
+        "types": "./fi/uuid.d.cts",
+        "default": "./fi/uuid.cjs"
+      }
+    },
+    "./fi/value": {
+      "import": {
+        "types": "./fi/value.d.ts",
+        "default": "./fi/value.js"
+      },
+      "require": {
+        "types": "./fi/value.d.cts",
+        "default": "./fi/value.cjs"
+      }
+    },
+    "./fi/words": {
+      "import": {
+        "types": "./fi/words.d.ts",
+        "default": "./fi/words.js"
+      },
+      "require": {
+        "types": "./fi/words.d.cts",
+        "default": "./fi/words.cjs"
+      }
+    },
     "./fr": {
       "import": {
         "types": "./fr/index.d.ts",
@@ -18580,4 +19321,4 @@
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/packages/i18n/scripts/build-jsr.ts b/packages/i18n/scripts/build-jsr.ts
index 3e1e60f7d..8e7a678ea 100644
--- a/packages/i18n/scripts/build-jsr.ts
+++ b/packages/i18n/scripts/build-jsr.ts
@@ -8,6 +8,7 @@ import cs from '../src/cs';
 import de from '../src/de';
 import es from '../src/es';
 import fa from '../src/fa';
+import fi from '../src/fi';
 import fr from '../src/fr';
 import hu from '../src/hu';
 import id from '../src/id';
@@ -41,6 +42,7 @@ const languages = [
   de,
   es,
   fa,
+  fi,
   fr,
   id,
   it,
diff --git a/packages/i18n/scripts/build-npm.ts b/packages/i18n/scripts/build-npm.ts
index 0af609eed..f573083e0 100644
--- a/packages/i18n/scripts/build-npm.ts
+++ b/packages/i18n/scripts/build-npm.ts
@@ -7,6 +7,7 @@ import cs from '../src/cs';
 import de from '../src/de';
 import es from '../src/es';
 import fa from '../src/fa';
+import fi from '../src/fi';
 import fr from '../src/fr';
 import hu from '../src/hu';
 import id from '../src/id';
@@ -40,6 +41,7 @@ const languages = [
   de,
   es,
   fa,
+  fi,
   fr,
   hu,
   id,
diff --git a/packages/i18n/src/fi.ts b/packages/i18n/src/fi.ts
new file mode 100644
index 000000000..8f6c981fe
--- /dev/null
+++ b/packages/i18n/src/fi.ts
@@ -0,0 +1,83 @@
+import type { Language } from './types';
+
+// prettier-ignore
+const language: Language = {
+  code:               'fi',
+  schema:             (issue) => `Virheellinen tyyppi: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+  specific: {
+    base64:           (issue) => `Virheellinen Base64: saatiin ${issue.received}`,
+    bic:              (issue) => `Virheellinen BIC: saatiin ${issue.received}`,
+    bytes:            (issue) => `Virheelliset tavut: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    check:            (issue) => `Virheellinen syöte: saatiin ${issue.received}`,
+    checkAsync:       (issue) => `Virheellinen syöte: saatiin ${issue.received}`,
+    checkItems:       (issue) => `Virheellinen alkio: saatiin ${issue.received}`,
+    checkItemsAsync:  (issue) => `Virheellinen alkio: saatiin ${issue.received}`,
+    creditCard:       (issue) => `Virheellinen luottokortti: saatiin ${issue.received}`,
+    cuid2:            (issue) => `Virheellinen Cuid2: saatiin ${issue.received}`,
+    decimal:          (issue) => `Virheellinen desimaaliluku: saatiin ${issue.received}`,
+    digits:           (issue) => `Virheellinen numero: saatiin ${issue.received}`,
+    email:            (issue) => `Virheellinen sähköposti: saatiin ${issue.received}`,
+    emoji:            (issue) => `Virheellinen emoji: saatiin ${issue.received}`,
+    empty:            (issue) => `Virheellinen pituus: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    endsWith:         (issue) => `Virheellinen loppu: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    everyItem:        (issue) => `Virheellinen alkio: saatiin ${issue.received}`,
+    excludes:         (issue) => `Virheellinen sisältö: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    finite:           (issue) => `Virheellinen äärellinen luku: saatiin ${issue.received}`,
+    graphemes:        (issue) => `Virheellinen määrä grafeemeja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    hash:             (issue) => `Virheellinen hash: saatiin ${issue.received}`,
+    hexColor:         (issue) => `Virheellinen heksaväri: saatiin ${issue.received}`,
+    hexadecimal:      (issue) => `Virheellinen heksadesimaali: saatiin ${issue.received}`,
+    imei:             (issue) => `Virheellinen IMEI: saatiin ${issue.received}`,
+    includes:         (issue) => `Virheellinen sisältö: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    integer:          (issue) => `Virheellinen kokonaisluku: saatiin ${issue.received}`,
+    ip:               (issue) => `Virheellinen IP-osoite: saatiin ${issue.received}`,
+    ipv4:             (issue) => `Virheellinen IPv4: saatiin ${issue.received}`,
+    ipv6:             (issue) => `Virheellinen IPv6: saatiin ${issue.received}`,
+    isoDate:          (issue) => `Virheellinen päivämäärä: saatiin ${issue.received}`,
+    isoDateTime:      (issue) => `Virheellinen ISO-päivämäärä ja -aika: saatiin ${issue.received}`,
+    isoTime:          (issue) => `Virheellinen aika: saatiin ${issue.received}`,
+    isoTimeSecond:    (issue) => `Virheellinen aika sekunneissa: saatiin ${issue.received}`,
+    isoTimestamp:     (issue) => `Virheellinen aikaleima: saatiin ${issue.received}`,
+    isoWeek:          (issue) => `Virheellinen viikko: saatiin ${issue.received}`,
+    length:           (issue) => `Virheellinen pituus: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    mac:              (issue) => `Virheellinen MAC: saatiin ${issue.received}`,
+    mac48:            (issue) => `Virheellinen 48-bit MAC: saatiin ${issue.received}`,
+    mac64:            (issue) => `Virheellinen 64-bit MAC: saatiin ${issue.received}`,
+    maxBytes:         (issue) => `Virheellinen määrä tavuja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    maxGraphemes:     (issue) => `Virheellinen määrä grafeemeja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    maxLength:        (issue) => `Virheellinen pituus: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    maxSize:          (issue) => `Virheellinen koko: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    maxValue:         (issue) => `Virheellinen arvo: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    maxWords:         (issue) => `Virheellinen sanamäärä: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    mimeType:         (issue) => `Virheellinen MIME-tyyppi: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    minBytes:         (issue) => `Virheellinen määrä tavuja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    minGraphemes:     (issue) => `Virheellinen määrä grafeemeja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    minLength:        (issue) => `Virheellinen pituus: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    minSize:          (issue) => `Virheellinen koko: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    minValue:         (issue) => `Virheellinen arvo: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    minWords:         (issue) => `Virheellinen sanamäärä: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    multipleOf:       (issue) => `Virheellinen monikerta: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    nanoid:           (issue) => `Virheellinen Nano ID: saatiin ${issue.received}`,
+    nonEmpty:         (issue) => `Virheellinen pituus: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    notBytes:         (issue) => `Virheellinen määrä tavuja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    notGraphemes:     (issue) => `Virheellinen määrä grafeemeja: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    notLength:        (issue) => `Virheellinen pituus: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    notSize:          (issue) => `Virheellinen koko: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    notValue:         (issue) => `Virheellinen arvo: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    notWords:         (issue) => `Virheelliset sanat: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    octal:            (issue) => `Virheellinen oktaaliluku: saatiin ${issue.received}`,
+    partialCheck:     (issue) => `Virheellinen syöte: saatiin ${issue.received}`,
+    regex:            (issue) => `Virheellinen muoto: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    safeInteger:      (issue) => `Virheellinen turvallinen kokonaisluku: saatiin ${issue.received}`,
+    size:             (issue) => `Virheellinen koko: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    someItem:         (issue) => `Virheellinen alkio: saatiin ${issue.received}`,
+    startsWith:       (issue) => `Virheellinen alku: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    ulid:             (issue) => `Virheellinen ULID: saatiin ${issue.received}`,
+    url:              (issue) => `Virheellinen URL: saatiin ${issue.received}`,
+    uuid:             (issue) => `Virheellinen UUID: saatiin ${issue.received}`,
+    value:            (issue) => `Virheellinen arvo: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+    words:            (issue) => `Virheelliset sanat: odotettiin ${issue.expected}, mutta saatiin ${issue.received}`,
+  },
+};
+
+export default language;
diff --git a/packages/i18n/src/types.ts b/packages/i18n/src/types.ts
index c860e49de..40293cccd 100644
--- a/packages/i18n/src/types.ts
+++ b/packages/i18n/src/types.ts
@@ -9,6 +9,7 @@ export type Language = {
     | 'en'
     | 'es'
     | 'fa'
+    | 'fi'
     | 'fr'
     | 'hu'
     | 'id'