To ring, as a bell; especially, to ring slowly, for or as for a funeral; toll; knell.To ring or sound a knell for; warn or draw by the sound of a bell.To sound, as a bell; ring.n. The ringing of a bell: as, the curfew knoll.n. The top or crown of a hill; more generally, a small, gently rounded hill or mount.n. A turnip.