# kay

> English word · Noun · IPA /keɪ/ · frequency rank #7,935

## Definitions
1. The name of the Latin script letter K/k.
2. A kilometer.
3. A thousand of some unit (from kilo-).

## Etymology
From Latin kā.

## Easily confused with
- **kI** (https://plainspell.com/en/vs/kay-vs-ki)
- **ky** (https://plainspell.com/en/vs/kay-vs-ky)
- **ko** (https://plainspell.com/en/vs/kay-vs-ko)
- **KC** (https://plainspell.com/en/vs/kay-vs-kc)
- **Ku** (https://plainspell.com/en/vs/kay-vs-ku)
- **KS** (https://plainspell.com/en/vs/kay-vs-ks)
- **Ke** (https://plainspell.com/en/vs/kay-vs-ke)
- **KD** (https://plainspell.com/en/vs/kay-vs-kd)
- **KB** (https://plainspell.com/en/vs/kay-vs-kb)
- **KT** (https://plainspell.com/en/vs/kay-vs-kt)
- **kk** (https://plainspell.com/en/vs/kay-vs-kk)
- **KL** (https://plainspell.com/en/vs/kay-vs-kl)
- **KP** (https://plainspell.com/en/vs/kay-vs-kp)
- **KJ** (https://plainspell.com/en/vs/kay-vs-kj)
- **KF** (https://plainspell.com/en/vs/kay-vs-kf)
- **key** (https://plainspell.com/en/vs/kay-vs-key)
- **kid** (https://plainspell.com/en/vs/kay-vs-kid)
- **Kim** (https://plainspell.com/en/vs/kay-vs-kim)
- **kit** (https://plainspell.com/en/vs/kay-vs-kit)
- **ken** (https://plainspell.com/en/vs/kay-vs-ken)

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