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English definition of “behind”

behind

preposition
 
 
/bɪˈhaɪnd/
BACK A1 at or to the back of someone or something: Close the door behind you. The warehouse is behind the store. The letter had fallen behind the desk.After and behindBefore, after and already
LESS SUCCESSFUL B1 slower or less successful than someone or something: Our team is 3 points behind the winners. The building work is already behind schedule (= late).Failing and doing badly
CAUSING causing something, or responsible for something: What was the reason behind her decision to leave?Causing things to happen
SUPPORTING B1 giving your help or support to someone: The group is 100 percent behind her.Backing, supporting and defendingDefending and protecting
NOT AFFECTING If a bad experience or your own bad behaviour is behind you, it does not exist or affect your life now: He's put his criminal past behind him.Of little or less importance
(Definition of behind preposition from the Cambridge Learners Dictionary © Cambridge University Press)
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