Definition of overdo verb from the Oxford Advanced American Dictionary

     

    overdo

     verb
    verb
    NAmE//ˌoʊvərˈdu//
     
    Verb Forms present simple I / you / we / they overdo
     
    he / she / it overdoes
     
    past simple overdid
     
    past participle overdone
     
    -ing form overdoing
     
     
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  1. 1overdo something to do something too much; to exaggerate something She really overdid the sympathy (= and so did not seem sincere).
  2. 2overdo something to use too much of something Don't overdo the salt in the food. Use illustrations where appropriate but don't overdo it.
  3. 3[usually passive] overdo something to cook something for too long The fish was overdone and very dry.
  4. Idioms
    overdo it/things
     
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    to work, study, etc. too hard or for too long He's been overdoing things recently. I overdid it in the gym and hurt my back.
See the Oxford Advanced Learner's Dictionary entry: overdo