American English

Definition of under- prefix from the Oxford Advanced American Dictionary

     

    under-

     prefix
    prefix
    NAmE//ˈʌndər//
     
     
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  1. 1(in nouns and adjectives) below; beneath undergrowth undercover
  2. 2(in nouns) lower in age or rank the under-fives an undergraduate
  3. 3(in adjectives and verbs) not enough underripe undercooked
See the Oxford Advanced Learner's Dictionary entry: under-