---
title: isLetter
framework: swift
role: symbol
role_heading: Instance Property
path: swift/character/isletter
---

# isLetter

A Boolean value indicating whether this character is a letter.

## Declaration

```swift
var isLetter: Bool { get }
```

## Discussion

Discussion For example, the following characters are all letters: “A” (U+0041 LATIN CAPITAL LETTER A) “é” (U+0065 LATIN SMALL LETTER E, U+0301 COMBINING ACUTE ACCENT) “ϴ” (U+03F4 GREEK CAPITAL THETA SYMBOL) “ڈ” (U+0688 ARABIC LETTER DDAL) “日” (U+65E5 CJK UNIFIED IDEOGRAPH-65E5) “ᚨ” (U+16A8 RUNIC LETTER ANSUZ A)

## See Also

### Inspecting a Character

- [isPunctuation](swift/character/ispunctuation.md)
- [isNewline](swift/character/isnewline.md)
- [isWhitespace](swift/character/iswhitespace.md)
- [isSymbol](swift/character/issymbol.md)
- [isMathSymbol](swift/character/ismathsymbol.md)
- [isCurrencySymbol](swift/character/iscurrencysymbol.md)