a piece of metal, or other hard material, formed or bent into a curve or at an angle, for catching, holding, or sustaining anything; as, a hook for catching fish; a hook for fastening a gate; a boat hook, etc.-that part of a hinge which is fixed to a post, and on which a door or gate hangs and turns.-an implement for cutting grass or grain; a sickle; an instrument for cutting or lopping; a billhook.-see eccentric, and v-hook.-a snare; a trap.-a field sown two years in succession.-the projecting points of the thigh bones of cattle; -- called also hook bones.-to catch or fasten with a hook or hooks; to seize, capture, or hold, as with a hook, esp. with a disguised or baited hook; hence, to secure by allurement or artifice; to entrap; to catch; as, to hook a dress; to hook a trout.-to seize or pierce with the points of the horns, as cattle in attacking enemies; to gore.-to steal.-to bend; to curve as a hook.