cap

The definition of a cap is a covering.

(noun)

Cap is defined as to put a top on something.

(verb)

An example of cap is to put an artificial crown on a tooth.

See cap in Webster's New World College Dictionary

noun

any closefitting head covering, brimless or with only a front visor, and made of wool, cotton, etc., as a baseball cap or overseas cap, or of muslin or lace, as a nurse's or baby's cap
1. a special covering for the head, worn as a mark of occupation, rank, academic degree, etc.: a cardinal's cap, fool's cap
2. mortarboard (sense )
a caplike part or thing; cover or top, as the cap-shaped part of a mushroom, a small metal cover for a bottle, the cover over a camera lens or other projecting or end part, a kneecap, an artificial crown for a tooth, a mountain top, or the capital of a column
percussion cap
a little paper percussion cap for toy guns ()
an upper limit set on a budget, cost, etc.; ceiling

Origin: ME cappe < OE cæppe & ML cappa < LL cappa, a cape, hooded cloak

transitive verb capped, capping

to put a cap on
to present ceremonially with a special cap, as at a graduation: to cap a nurse
to cover the top or end of; form a cap: snow capped the hills
1. to do as well as or better than; equal or excel
2. to follow with another that is equivalent or better than; match: to cap a quotation
to bring to a high point, as of interest or excitement; climax
to set a cap, or upper limit, for

Civil Air Patrol

See cap in American Heritage Dictionary 4

noun

A usually soft and close-fitting head covering, either having no brim or with a visor.
a. A special head covering worn to indicate rank, occupation, or membership in a particular group: a cardinal's cap; a sailor's cap.
b. An academic mortarboard. Used especially in the phrase cap and gown.
a. A protective cover or seal, especially one that closes off an end or a tip: a bottle cap; a 35-millimeter lens cap.
b. A crown for covering or sealing a tooth.
c. A tread for a worn pneumatic tire.
d. A fitted covering used to seal a well or large pipe.
e. Chiefly Southern U.S. See eye.
A summit or top, as of a mountain.
An upper limit; a ceiling: placed a cap on mortgage rates.
Architecture The capital of a column.
Botany
a. The top part, or pileus, of a mushroom.
b. A calyptra.
a. A percussion cap.
b. A small explosive charge enclosed in paper for use in a toy gun.
Any of several sizes of writing paper, such as foolscap.
Sports An appearance by a player in an international soccer game, traditionally rewarded with a hat.

transitive verb capped capped, cap·ping, caps

To cover, protect, or seal with a cap.
To award a special cap to as a sign of rank or achievement: capped the new women nurses at graduation.
To lie over or on top of; cover: hills capped with snow.
To apply the finishing touch to; complete: cap a meal with dessert.
To follow with something better; surpass or outdo: capped his last trick with a disappearing act that brought the audience to its feet.
To set an upper limit on: decided to cap cost-of-living increases.

Origin:

Origin: Middle English cappe

Origin: , from Old English cǽppe

Origin: , from Late Latin cappa

noun

A capital letter.

transitive verb capped capped, cap·ping, caps

To capitalize.

Origin:

Origin: Shortened form of capital¹

noun
Informal