—adj. 1. threefold; triple.
2. Music. a. of or pertaining to the highest part in harmonized music; soprano.
b. of the highest pitch or range, as a voice part, voice, singer, or instrument.
c. high in pitch; shrill.
—n. 1. Music. a. the treble or soprano part.
b. a treble voice, singer, or instrument.
2. a high or shrill voice or sound.
3. the highest-pitched peal of a bell.
—v.t., v.i. to make or become three times as much or as many; triple.