adv trebly; triply.
2. treble ·adj threefold; triple.
3. treble ·vi to become threefold.
4. treble ·adj acute; sharp; as, a treble sound.
5. treble ·vt to make thrice as much; to make threefold.
6. treble ·vt to utter in a treble key; to whine.
7. treble ·noun the highest of the four principal parts in music; the part usually sung by boys or women; soprano.
8. treble ·adj playing or singing the highest part or most acute sounds; playing or singing the treble; as, a treble violin or voice.