Definition of: triple

(trip′əl) v. ·led, ·ling v.t.
1. To make threefold in number or quantity.
—v.i.
2. To be or become three times as many or as large.
3. In baseball, to make a triple.
—adjective
1. Consisting of three things united or of three parts; threefold.
2. Multiplied by three; thrice said or done.
3. Archaic Third.
—noun
1. A set or group of three.
2. In baseball, a three–base hit. [<MF <L triplus <Gk. triploos threefold. Doublet of TREBLE.]
—trip′ly adverb