treble

Triple.

Relating to or having the highest part, voice, or range.

High-pitched; shrill.

The highest part, voice, instrument, or range.

A singer or player that performs this part.

A high, shrill sound or voice.

To make or become triple.

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.