American English

Definition of disappear verb from the Oxford Advanced American Dictionary

      

    disappear

     verb
    verb
    NAmE//ˌdɪsəˈpɪr//
     
    Verb Forms present simple I / you / we / they disappear
     
    he / she / it disappears
     
    past simple disappeared
     
    -ing form disappearing
     
     
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  1. 1[intransitive] (+ adv./prep.) to become impossible to see synonym vanish The plane disappeared behind a cloud. Lisa watched until the train disappeared from view.
  2. 2 [intransitive] to stop existing synonym vanish Her nervousness quickly disappeared once she was on stage. The problem won't just disappear. Our forests are disappearing at an alarming rate.
  3. 3 [intransitive] to be lost or impossible to find synonym vanish I can never find a pen in this house. They disappear as soon as I buy them. disappear from something The child disappeared from his home some time after four.
disappearance
 
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1
NAmE//ˌdɪsəˈpɪrəns//
 
noun [uncountable, countable] the disappearance of many species of plants and animals from our planet Police are investigating the disappearance of a young woman.
Idioms
disappear/vanish off the face of the earth
 
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2to disappear completely Keep looking—they can't just have vanished off the face of the earth.
do, perform, stage, etc. a disappearing/vanishing act (informal)
 
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3to go away or be impossible to find when people need or want you
See the Oxford Advanced Learner's Dictionary entry: disappear