Triple: "treble reason for loving as well as working while it is day"(George Eliot).
Music Relating to or having the highest part, voice, or range.
High-pitched; shrill.
n.
Music
The highest part, voice, instrument, or range.
A singer or player that performs this part.
A high, shrill sound or voice.
tr. & intr.v.
treb·led, treb·ling, treb·les To make or become triple.
[Middle English, from Old French, from Medieval Latin triplum, from Latin, neuter of triplus, triple; see triple.] treb'le·ness n., treb'ly (trěb'lē) adv.