---
title: lemma
framework: foundation
role: symbol
role_heading: Type Property
path: foundation/nslinguistictagscheme/lemma
---

# lemma

Supplies a stem form of a word token, if known.

## Declaration

```swift
static let lemma: NSLinguisticTagScheme
```

## Discussion

Discussion For example, the stem of the English word “reading” is “read”.

## See Also

### Schemes

- [tokenType](foundation/nslinguistictagscheme/tokentype.md)
- [lexicalClass](foundation/nslinguistictagscheme/lexicalclass.md)
- [nameType](foundation/nslinguistictagscheme/nametype.md)
- [nameTypeOrLexicalClass](foundation/nslinguistictagscheme/nametypeorlexicalclass.md)
- [language](foundation/nslinguistictagscheme/language.md)
- [script](foundation/nslinguistictagscheme/script.md)