An utterance of ‘yea’; an affirmative answer or vote; an expression of assent or agreement. Usually contrasted with nay or no.

An utterance of the word ‘yes’; an affirmative answer or decision; an indication of assent. Cf. no, n.1 2.

Originally and chiefly U.S. In a confirmatory reply (esp. in radio communication), as that's an affirmative: an affirmative response; a ‘yes’. Cf…