Definition of before adverb from the Oxford Advanced American Dictionary

  

before

 adverb
adverb
NAmE//bɪˈfɔr//
 
 
jump to other results
 at an earlier time; in the past; already You should have told me so before. It was fine the week before (= the previous week). That had happened long before (= a long time earlier). I think we've met before.
See the Oxford Advanced Learner's Dictionary entry: before