imp. of rive.n. One of the upper side pieces of the frame of a wagon body or a sleigh.verb-intransitive. To wander in mind or intellect; to be delirious; to talk or act irrationally; to be wild, furious, or raging, as a madman.verb-intransitive. To rush wildly or furiously.verb-intransitive. To talk with unreasonable enthusiasm or excessive passion or excitement; -- followed by about, of, or on.v. To utter in madness or frenzy; to say wildly.n. An instance of raving.n. A highly flattering or enthusiastic review of a play, book, etc.n. A clamorous dance party, especially one featuring a band or disc jockey playing loud modern rock music oriented toward young people, held in a large room such as a warehouse, often organized by an informal or ad hoc sponsor.