TREBLE Copy link • TREBLE 1. adj., triplus (thrice as much): trigeminus or (more poetical) tergeminus (repeated three times): tripartitus (in three parts): triplex (consisting of three divisions): terni, -ae, -a (three at once; e.g., soles terni). 2. v. triplicare (Gell.). 3. s. In music, vox attenuata, acuta (Auctor ad Her.): soni acuti (Cic.): summa vox (Hor., Sat.). To sing treble, summa voce canere: to go from the highest treble to the deepest bass, vocem ab acutissimo sono usque ad gravissimum sonum recipere (Cic., De Or., 1, 59, 201).