# singleton

> English word · Noun · IPA /ˈsɪŋ.ɡ(ə)l.tən/ · frequency rank #23,997

## Definitions
1. A playing card that is the only one of its suit in a hand, especially at bridge.
2. A hand containing only one card of a certain suit.
3. A single object, especially one of a group.
4. A class that may not be instantiated more than once, i.e. that implements the singleton design pattern.
5. A set with exactly one element.
6. A child or animal that is born singly, not as a twin or other multiple birth.
7. A person without a romantic partner.
8. A person without a dissociative identity.
9. A single consonant, as opposed to a geminated consonant.
10. Synonym of blot.
11. A class offered only once within a school year.

## Etymology
From single + -ton, probably following the model of simpleton.

## Easily confused with
- **singlet** (https://plainspell.com/en/vs/singlet-vs-singleton)

## Common misspellings (14)
`isngleton`, `signleton`, `singelton`, `singgleton`, `singleotn`, `singletno`, `singletonn`, `singletton`, `singlleton`, `singlteon`, `sinlgeton`, `sinngleton`, `snigleton`, `ssingleton`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/singleton