---
title: "localizedString(forCollationIdentifier:)"
framework: foundation
role: symbol
role_heading: Instance Method
path: "foundation/locale/localizedstring(forcollationidentifier:)"
---

# localizedString(forCollationIdentifier:)

Returns a localized string for a specified ICU collation identifier.

## Declaration

```swift
func localizedString(forCollationIdentifier collationIdentifier: String) -> String?
```

## Discussion

Discussion For example, in the “en” locale, the result for "phonebook" is "Phonebook Sort Order".

## See Also

### Getting display information about a locale

- [localizedString(for:)](foundation/locale/localizedstring(for:).md)
- [localizedString(forCollatorIdentifier:)](foundation/locale/localizedstring(forcollatoridentifier:).md)
- [localizedString(forCurrencyCode:)](foundation/locale/localizedstring(forcurrencycode:).md)
- [localizedString(forIdentifier:)](foundation/locale/localizedstring(foridentifier:).md)
- [localizedString(forLanguageCode:)](foundation/locale/localizedstring(forlanguagecode:).md)
- [localizedString(forRegionCode:)](foundation/locale/localizedstring(forregioncode:).md)
- [localizedString(forScriptCode:)](foundation/locale/localizedstring(forscriptcode:).md)
- [localizedString(forVariantCode:)](foundation/locale/localizedstring(forvariantcode:).md)