# cap

> English word · Noun · IPA /kæp/ · frequency rank #2,929

## Definitions
1. A close-fitting hat, either brimless or peaked.
2. A special hat to indicate rank, occupation, etc.
3. An academic mortarboard.
4. A protective cover or seal.
5. A crown for covering a tooth.
6. The summit of a mountain, etc.
7. An artificial upper limit or ceiling.
8. The top part of a mushroom.
9. A small amount of percussive explosive in a paper strip or plastic cup for use in a toy gun.
10. A small explosive device used to detonate a larger charge of explosives.
11. A bullet used to shoot someone.
12. A lie or exaggeration.
13. A place on a national team; an international appearance.
14. The top, or uppermost part; the chief.
15. A respectful uncovering of the head.
16. The whole top of the head of a bird from the base of the bill to the nape of the neck.
17. The uppermost of any assemblage of parts.
18. Something covering the top or end of a thing for protection or ornament.
19. A collar of iron or wood used in joining spars, as the mast and the topmast, the bowsprit and the jib boom; also, a covering of tarred canvas at the end of a rope.
20. A portion of a spherical or other convex surface.
21. A large size of writing paper.
22. Popcorn.

## Etymology
Inherited from Middle English cappe, from Old English cæppe, from Proto-West Germanic *kappā (“covering, hood, mantle”), from Late Latin cappa, itself from Latin caput. Doublet of cape, chape, and cope.

## Easily confused with
- **co** (https://plainspell.com/en/vs/cap-vs-co)
- **CD** (https://plainspell.com/en/vs/cap-vs-cd)
- **CM** (https://plainspell.com/en/vs/cap-vs-cm)
- **CC** (https://plainspell.com/en/vs/cap-vs-cc)
- **CT** (https://plainspell.com/en/vs/cap-vs-ct)
- **CR** (https://plainspell.com/en/vs/cap-vs-cr)
- **ch** (https://plainspell.com/en/vs/cap-vs-ch)
- **cs** (https://plainspell.com/en/vs/cap-vs-cs)
- **Cl** (https://plainspell.com/en/vs/cap-vs-cl)
- **CE** (https://plainspell.com/en/vs/cap-vs-ce)
- **cp** (https://plainspell.com/en/vs/cap-vs-cp)
- **CB** (https://plainspell.com/en/vs/cap-vs-cb)
- **CV** (https://plainspell.com/en/vs/cap-vs-cv)
- **CU** (https://plainspell.com/en/vs/cap-vs-cu)
- **CW** (https://plainspell.com/en/vs/cap-vs-cw)
- **ci** (https://plainspell.com/en/vs/cap-vs-ci)
- **CJ** (https://plainspell.com/en/vs/cap-vs-cj)
- **CG** (https://plainspell.com/en/vs/cap-vs-cg)
- **CX** (https://plainspell.com/en/vs/cap-vs-cx)
- **cz** (https://plainspell.com/en/vs/cap-vs-cz)

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