A man who retires from the ordinary temporal concerns of the world, and devotes himself to religion; one of a religious community of men inhabiting a monastery, and bound by vows to a life of chastity, obedience, and poverty. "A monk out of his cloister." "Monks in some respects agree with regulars, as in the substantial vows of religion; but in other respects monks and regulars differ; for that regulars, vows excepted, are not tied up to so strict a rule of life as monks are."