opposite

Opposite describes someone or something that is the reverse of something else. (noun)

An example of opposite is black, as compared to white.

Opposite describes something or someone who is across from you or who is on a different side as you are. (adjective)

See opposite in Webster's New World College Dictionary

adjective

set against, facing, or back to back; at the other end or side; in a contrary position or direction: often with to
characterized by hostility or resistance
different in every way; exactly contrary; antithetical
Bot.
1. growing in pairs, but separated by a stem
2. having one part on the same radius as another, as a stamen in front of a petal

noun

anything opposed or opposite

adverb

on opposing sides or in an opposite position

facing; across from
Theater in a complementary role (of the opposite sex) to: he played opposite her

Related Forms:

See opposite in American Heritage Dictionary 4

(ŏpˈə-zĭt)

adjective

Placed or located directly across from something else or from each other: opposite sides of a building.
Facing the other way; moving or tending away from each other: opposite directions.
Being the other of two complementary or mutually exclusive things: the opposite sex; an opposite role to the lead in the play.
a. Altogether different, as in nature, quality, or significance: The effect of the medication was opposite to that intended.
b. Sharply contrasting; antithetical: had opposite views on the subject.
Botany Growing in pairs on either side of a stem: opposite leaves.