1. To cause to clack.

2. A sharp abrupt sound, frequently repeated; anything that clacks; a continual talking; incessant tattle; the tongue, in contempt. In a corn-mill, an instrument that strikes the hopper and promotes the running of the corn; also a bell which gives notice when more corn is required in the hopper.

3. To make a sudden sharp noise, as by striking or cracking; to go on talking with short, sharp, abrupt sounds.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• clak,
• calback,
• ceack,
• cllick,
• clikck,
• cleick,
• clunck,
• cloick,
• claok,
• wlalk,
• nlock,
• clieck,
• clucb,
• blaack,
• clickk,
• clickf,
• cloac,
• clickc,
• cquck,
• cleark

• cliche,
• crack,
• calk,
• cloche,
• Cleek,
• clock,
• clocks,
• clank,
• cluck,
• cloak,
• black,
• slack,
• clusia,
• clerk,
• clukey,
• click,
• lack,
• clx,
• Clichy,
• cloaca.

The adverb form of "clack" is "clackily".

The adjective form of the word "clack" is "clacking".

The plural of the "clack" can be the "clacks".

The singular of the "clack" can be the "clack".