Threefold; triple.In music, pertaining to the voice or the voice-part called treble or soprano; high in pitch; in harmony, occupying the upper place: as, a treble voice; a treble violin. See II.n. In music: Same as soprano (which see).n. A singer with a soprano or treble voice, or an instrument that takes the upper part in concerted music.n. Also triplex.n. In short whist, a game which counts three points to the winners, their adversaries not having scored.To make thrice as much; make threefold; multiply by three; triple.To utter in a high or treble tone; hence, to whine.To become threefold.