(obsolete) A rabbit burrow.

A narrow board, usually thicker at one edge than the other, used as siding for houses and similar structures of frame construction.

To cover with clapboards.

(film) A clapper board; a device used in film production, having hinged boards that are brought together with a clap, used to synchronize picture and sound at the start of each take of a motion picture or other video production.

Empty verbiage or nonsense. / (historical) A device for producing a clapping sound in theaters. / A device or trick to gain applause; a humbug.

(obsolete) A hooded seal. / A female seal.

An audience-reaction monitor used to give a visual interpretation of applause; once used on some television game shows.

plural of clapper

Third-person singular simple present indicative form of clapper

plural of clapmatch