Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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be·fore

before

 
pronunciation:
b for
parts of speech:
adverb, preposition, conjunction
part of speech: adverb
definition: at an earlier time; in the past.
Sam thought he had read this book before.
 
part of speech: preposition
definition 1: earlier than; previous to.
Cinderella forgot to leave before midnight.
antonyms:
after, past, since
definition 2: in front of; ahead of.
She stood before the door and knocked.
 
antonyms:
after, past
 
part of speech: conjunction
definition: earlier than the time when something else happens.
I always brush my teeth before I go to bed.
antonyms:
after