It may also refer to (a fixed) time: How to use behind in a sentence. If you refer to what is behind someone's outside appearance, you are referring to a characteristic which you cannot immediately see or is not.
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In baseball, if the pitcher (= the player who throws the ball) is behind. The meaning of behind is in the place or situation that is being or has been departed from. In, to, or toward the.
Behind applies primarily to position in space, and suggests that one person or thing is at the back of another;
Behind synonyms, behind pronunciation, behind translation, english dictionary definition of behind.