Dictionary
op•po•nent
Pronunciation: (u-pō'nunt), [key]—
n.
a person who is on an opposing side in a game, contest, controversy, or the like; adversary.
—
adj.
1. being opposite, as in position.
2. opposing; adverse; antagonistic.
3. Anat.bringing parts together or into opposition, as a muscle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.