yes· ter· day ˈye-stər- (ˌ)dā -dē 1 : on the day last past : on the day preceding today 2 : at a time not long past : only a short time ago I wasn’t born yesterday yesterday 2 of 2 noun 1 : the day last past : the day next before the present 2 : recent time : time not long past 3 : past time usually used in plural Synonyms Noun auld lang syne

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