---
title: languageIdentifier
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nslocale/languageidentifier
---

# languageIdentifier

Returns the identifier for the language part of the locale. For example, returns “en-US” for “en_US@rg=gbzzzz”  locale.

## Declaration

```swift
var languageIdentifier: String { get }
```