to abstain from food; to omit to take nourishment in whole or in part; to go hungry.-to practice abstinence as a religious exercise or duty; to abstain from food voluntarily for a time, for the mortification of the body or appetites, or as a token of grief, or humiliation and penitence.-abstinence from food; omission to take nourishment.-voluntary abstinence from food, for a space of time, as a spiritual discipline, or as a token of religious humiliation.-a time of fasting, whether a day, week, or longer time; a period of abstinence from food or certain kinds of food; as, an annual fast.-firmly fixed; closely adhering; made firm; not loose, unstable, or easily moved; immovable; as, to make fast the door.-firm against attack; fortified by nature or art; impregnable; strong.-firm in adherence; steadfast; not easily separated or alienated; faithful; as, a fast friend.-permanent; not liable to fade by exposure to air or by washing; durable; lasting; as, fast colors.-tenacious; retentive.-not easily disturbed or broken; deep; sound.-moving rapidly; quick in mition; rapid; swift; as, a fast horse.-given to pleasure seeking; disregardful of restraint; reckless; wild; dissipated; dissolute; as, a fast man; a fast liver.-in a fast, fixed, or firmly established manner; fixedly; firmly; immovably.-in a fast or rapid manner; quickly; swiftly; extravagantly; wildly; as, to run fast; to live fast.-that which fastens or holds; especially, (naut.) a mooring rope, hawser, or chain; -- called, according to its position, a bow, head, quarter, breast, or stern fast; also, a post on a pier around which hawsers are passed in mooring.-the shaft of a column, or trunk of pilaster.