n. A demon of the water; a water-sprite; a nix or nixy.n. One who or that which nicks.n. One of a company of brawlers who in the early part of the eighteenth century roamed about London by night, amusing themselves with breaking people's windows.n. A kind of marble for children's play.To neigh.To laugh with half-suppressed catches of the voice; snigger.n. A neigh; also, a vulgar laugh.