Treble \Tre"ble\, v. i. To become threefold. --Swift.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Treble \Tre"ble\, a. [OE. treble threefold, OF. treble, treible, L. triplus. See Triple.]

1. Threefold; triple.

A lofty tower, and strong on every side With treble walls. --Dryden.

2. (Mus.)
   (a) Acute; sharp; as, a treble sound. --Bacon.
   (b) Playing or singing the highest part or most acute sounds; playing or singing the treble; as, a treble violin or voice.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Treble \Tre"ble\, adv. Trebly; triply. [Obs.]

--J. Fletcher.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Treble \Tre"ble\, n. [`` It has been said to be a corruption of triplum [Lat.]

, a third part, superadded to the altus and bassus (high and low).'' --Grove.]

(Mus.) The highest of the four principal parts in music; the part usually sung by boys or women; soprano.

Note: This is sometimes called the first treble, to distinguish it from the second treble, or alto, which is sung by lower female voices.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Treble \Tre"ble\, v. t. [imp. & p. p. Trebled; p. pr. & vb. n. Trebling.]

1. To make thrice as much; to make threefold. ``Love trebled life.'' --Tennyson.

2. To utter in a treble key; to whine. [Obs.]

He outrageously (When I accused him) trebled his reply. --Chapman.

Source: Webster's Revised Unabridged Dictionary (1913)