In baseball, if the pitcher (= the player who throws the ball) is behind. Behind synonyms, behind pronunciation, behind translation, english dictionary definition of behind. It may also refer to (a fixed) time:
The Polygraph Exam at Aaron Edwards blog
Behind (comparative more behind or (rare or nonstandard) behinder, superlative most behind or (rare or nonstandard) behindest) at or in. 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;
The meaning of behind is in the place or situation that is being or has been departed from.
How to use behind in a sentence.