Definitions
1.nounThe rear, back-end
2.nounButt, the buttocks, bottom
3.nounA one-point score.
4.noun(1800s) The catcher.
5.nounIn the Eton College field game, any of a group of players consisting of two "shorts" (who try to kick the ball over the bully) and a "long" (who defends the goal).
6.adverbAt the back part; in the rear.
7.adverbToward the back part or rear; backward."to look behind"
8.adverbOverdue, in arrears."I'm two weeks behind in my schedule."
9.adverbSlow; of a watch or clock."My watch is four minutes behind."
10.adverbExisting afterwards"He left behind a legacy of death and sorrow."
11.adverbBackward in time or order of succession; past.
12.adverbBehind the scenes in a theatre; backstage.
13.adverbNot yet brought forward, produced, or exhibited to view; out of sight; remaining.
14.prepositionAt the back of; positioned with something else in front of."The car is behind the wall."
15.prepositionTo the back of.
16.prepositionAfter, time- or motion-wise.
17.prepositionResponsible for"Who is behind these terrorist attacks?"
18.prepositionIn support of."The republicans are fully behind their candidate."
19.prepositionLeft a distance by, in progress or improvement; inferior to."I'm ranked sixth in the French class, behind five other pupils."
20.prepositionAs a result or consequence of