(music, historical or poetic) A medieval brass instrument chiefly used as a battle signal; related to the trumpet, it had a narrow, straight pipe and a high-pitched, piercing sound.

Of a sound, a voice, a message, etc.: brilliantly clear.

To announce or herald (something) using a clarion (noun sense 1). / (also figuratively) Of a thing: to cause (a place) to echo with a sound like that of a clarion.

Of or related to a clan. / Socially exclusive.

An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a sound midway between a click and a clunk.

(intransitive) To make a sudden, sharp noise, or succession of noises; to click. / (transitive) To cause to make a sudden, sharp noise, or succession of noises; to click.

(nautical, transitive) To temporarily add something to an existing part, especially to add an additional sail to take advantage of a fair wind. / (transitive) To encourage by (or as if by) applauding.

(film) 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.

A device locked to the wheel of a motor car to prevent it from being driven; normally used to enforce payment of a traffic violation fine

One who claims; one who makes a claim. / (UK) A person receiving money from the government, in a form of unemployment benefits, disability benefits or similar.