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.

(US) All students who have graduated or will graduate from a school in a given year.

A planned event at which members of a past school class meet.

A demand of ownership made for something. / The thing claimed. / The right or ground of demanding.

To demand ownership of. / To state a new fact, typically without providing evidence to prove it is true. / To demand ownership or right to use for land.

(archaic) simple past tense and past participle of clothe

(of a person, preceded by a garment type) Wearing clothing or some other covering (for example, an armour) on the body; clothed, dressed.

(archaic, literary or obsolete, past tense clad) To clothe, to dress. / (past tense clad or cladded) To cover with a cladding or another material (for example, insulation).