# CID

> English word · Noun · IPA /sɪd/ · frequency rank #23,782

## Definitions
1. caller identification; a feature that identifies the phone number of the caller.
2. Abbreviation of combat identification; compare IFF.
3. Acronym of center/centre instrument display.
4. Initialism of criminal investigation/investigative division/department.
5. Initialism of cubic inches displacement; cubic inches of displacement.

## Easily confused with
- **co** (https://plainspell.com/en/vs/cid-vs-co)
- **CM** (https://plainspell.com/en/vs/cid-vs-cm)
- **CT** (https://plainspell.com/en/vs/cid-vs-ct)
- **CR** (https://plainspell.com/en/vs/cid-vs-cr)
- **cs** (https://plainspell.com/en/vs/cid-vs-cs)
- **Cl** (https://plainspell.com/en/vs/cid-vs-cl)
- **cp** (https://plainspell.com/en/vs/cid-vs-cp)
- **CV** (https://plainspell.com/en/vs/cid-vs-cv)
- **CU** (https://plainspell.com/en/vs/cid-vs-cu)
- **CW** (https://plainspell.com/en/vs/cid-vs-cw)
- **CJ** (https://plainspell.com/en/vs/cid-vs-cj)
- **CX** (https://plainspell.com/en/vs/cid-vs-cx)
- **cz** (https://plainspell.com/en/vs/cid-vs-cz)
- **CQ** (https://plainspell.com/en/vs/cid-vs-cq)
- **cut** (https://plainspell.com/en/vs/cid-vs-cut)
- **cup** (https://plainspell.com/en/vs/cid-vs-cup)
- **cry** (https://plainspell.com/en/vs/cid-vs-cry)
- **cop** (https://plainspell.com/en/vs/cid-vs-cop)
- **CNN** (https://plainspell.com/en/vs/cid-vs-cnn)
- **con** (https://plainspell.com/en/vs/cid-vs-con)

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