Definition of warm verb from the Oxford Advanced American Dictionary

     

    warm

     verb
    verb
    NAmE//wɔrm//
     
    Verb Forms present simple I / you / we / they warm
     
    he / she / it warms
     
    past simple warmed
     
    -ing form warming
     
     
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    make/become warm
  1. 1[transitive, intransitive] to make something or someone warm or warmer; to become warm or warmer warm something/somebody/yourself (up) I'll warm up some milk. Come in and warm yourself by the fire. The hot cocoa warmed and relaxed him. warm (up) As the climate warms (up) the ice caps will melt.
  2. become friendly
  3. 2[intransitive, transitive] warm (somebody) to become more friendly, loving, etc.; to make someone feel or become more friendly, loving, etc. see also global warming, housewarming
  4. Idioms
    look/feel like death warmed over(informal)
     
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    to look or feel very sick or tired
    Phrasal Verbswarm downwarm to/toward somebodywarm to/toward somethingwarm upwarm upwarm somethingup
See the Oxford Advanced Learner's Dictionary entry: warm