#1 treble s. [soprano] having or denoting a high range; "soprano voice"; "soprano sax"; "the boy still had a fine treble voice"; "the treble clef". wn
#2 treble n. [soprano] the pitch range of the highest female voice. wn
#3 treble v. sing treble. wn
#4 treble v. [triple] increase threefold; "Triple your income!". wn
#5 treble s. [threefold, three-fold, triple] three times as great or many; "a claim for treble (or triple) damages"; "a threefold increase". wn
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