Definition of decay verb from the Oxford Advanced American Dictionary

     

    decay

     verb
    verb
    NAmE//dɪˈkeɪ//
     
    Verb Forms present simple I / you / we / they decay
     
    he / she / it decays
     
    past simple decayed
     
    -ing form decaying
     
     
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  1. 1[intransitive, transitive] decay (something) to be destroyed gradually by natural processes; to destroy something in this way synonym rot decaying leaves/teeth/food
  2. 2[intransitive] if a building or an area decays, its condition slowly becomes worse decaying areas of the inner city
  3. 3[intransitive] to become less powerful and lose influence over people, society, etc. decaying standards of morality
See the Oxford Advanced Learner's Dictionary entry: decay

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