clap

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Gonorrhea. Often used with the.
• intransitive verb To strike the palms of the hands together with a sudden explosive sound, as in applauding.
• intransitive verb To come together suddenly with a sharp sound.
• intransitive verb To strike together with a sharp sound, as one hard surface on another.
• intransitive verb To strike (the hands) together with an abrupt, loud sound, usually repeatedly.
• intransitive verb To strike lightly but firmly with the open hand, as in greeting.
• intransitive verb To put or place quickly and firmly.
• intransitive verb To arrange hastily.
• noun The act or sound of clapping the hands.
• noun A sudden, loud, explosive sound.
• noun A sharp blow with the open hand; a slap.
• noun Obsolete A sudden stroke of fortune, especially of bad luck.

from The Century Dictionary.

• To infect with venereal poison.
• noun Gonorrhea.
• noun A sudden sharp sound produced by a collision; a bang; a slap; a slam.
• noun Hence A burst or peal, as of thunder.
• noun A striking together, as of the hands or of a bird's wings; especially, a striking of the hands together, to express applause.
• noun A clapping; applause expressed by clapping.
• noun Noise of any kind, especially idle chatter.
• noun A sudden blow, motion, or act: generally in the phrase at a clap (which see, below).
• noun A touch or pat with the open hand: as, he put her off with a kiss and a clap.
• noun In falconry, the nether part of the beak of a hawk.
• noun Same as clapper, 1
• To strike with a quick, sharp motion; slap; pat, as with the palm of the open hand or some flat object: as, to clap one on the shoulder.
• Hence To fondle by.patting.
• To push forcibly; move together; shut hastily: followed by to: as, to clap to the door or gate.
• To place or put, especially by a hasty or sudden motion: as, to clap the hand to the mouth; to clap spurs to a horse.
• To strike, knock, or slap together, as the hands, or against the body, as wings, with a sharp, abrupt sound.
• Hence To manifest approbation of by striking the hands together; applaud by clapping the hands.
• To utter noisily.
• To imprison, especially without formality or delay.
• . To strike or knock, as at a door.
• To come together suddenly with a sharp noise; close with a bang; slam; clack.
• To applaud, as by clapping the hands together.
• To chatter; prattle or prate continually or noisily.
• To begin or set to work with alacrity and briskness.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To strike; to slap; to strike, or strike together, with a quick motion, so, as to make a sharp noise.
• transitive verb To thrust, drive, put, or close, in a hasty or abrupt manner; -- often followed by to, into, on, or upon.
• transitive verb To manifest approbation of, by striking the hands together; to applaud.
• transitive verb [Obs.], [Obs.] To pledge faith by joining hands.
• transitive verb to seize roughly or quickly.
• transitive verb [Obs.] To make or contrive hastily.
• noun A loud noise made by sudden collision; a bang.
• noun A burst of sound; a sudden explosion.
• noun A single, sudden act or motion; a stroke; a blow.
• noun A striking of hands to express approbation.
• noun obsolete Noisy talk; chatter.
• noun (Falconry) The nether part of the beak of a hawk.
• noun See Clack dish, under Clack, n.
• noun a net for taking birds, made to close or clap together.