Meaning

• A close-fitting hat, either brimless or peaked.

  "The children were all wearing caps to protect them from the sun."

• A special hat to indicate rank, occupation, etc.

• An academic mortarboard.

• A protective cover or seal.

  "He took the cap off the bottle and splashed himself with some cologne."

• A crown for covering a tooth.

  "He had golden caps on his teeth."

• The summit of a mountain, etc.

  "There was snow on the cap of the mountain."

• An artificial upper limit or ceiling.

  "We should put a cap on the salaries, to keep them under control."

• The top part of a mushroom.

• (toy) A small amount of percussive explosive in a paper strip or plastic cup for use in a toy gun.

  "Billy spent all morning firing caps with his friends, re-enacting storming the beach at Normandy."

• A small explosive device used to detonate a larger charge of explosives.

  "He wired the cap to the bundle of dynamite, then detonated it remotely."

• A bullet used to shoot someone.

• An international appearance.

  "Rio Ferdinand won his 50th cap for England in a game against Sweden."

• The top, or uppermost part; the chief.

• A respectful uncovering of the head.

• The whole top of the head of a bird from the base of the bill to the nape of the neck.

• The uppermost of any assemblage of parts.

  "the cap of column, door, etc.; a capital, coping, cornice, lintel, or plate"

• Something covering the top or end of a thing for protection or ornament.

• 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.

• A portion of a spherical or other convex surface.

• A large size of writing paper.

  "flat cap; foolscap; legal cap"

• A lie or exaggeration.

  "no cap"

Meaning

• To cover or seal with a cap.

• To award a cap as a mark of distinction.

• To lie over or on top of something.

• To surpass or outdo.

• To set an upper limit on something.

  "cap wages."

• To make something even more wonderful at the end.

  "That really capped my day."

• To select a player to play for a specified side.

• To shoot (someone) with a firearm.

  "In a school shooting, where some kid caps a bunch of other kids, where did he get the weapon? From a family member, probably their gun cabinet."

• To select to play for the national team.

  "Peter Shilton is the most capped English footballer."

• To salute by uncovering the head respectfully.

• To deprive of a cap.

• To tell a lie.