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Definition of overnight adverb from the Oxford Advanced Learner's Dictionary

overnight

adverb
 
 
/ˌəʊvəˈnaɪt/
 
/ˌəʊvərˈnaɪt/
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  1.  
    during or for the night
    • We stayed overnight in London after the theatre.
  2.  
    suddenly or quickly
    • Don't expect it to improve overnight.
    • She became famous overnight.
See overnight in the Oxford Advanced American Dictionary
Check pronunciation: overnight

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unclear
adjective
 
 
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