Treble

1. n. The highest of the four principal parts in music; the part usually sung by boys or women; soprano.
2. a. Threefold; triple.
3. a. Acute; sharp; as, a treble sound.
4. a. Playing or singing the highest part or most acute sounds; playing or singing the treble; as, a treble violin or voice.
5. adv. Trebly; triply.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.