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



    BrE BrE//ˌəʊvəˈnaɪt//
    ; NAmE NAmE//ˌoʊvərˈnaɪt//
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  1. 1during or for the night We stayed overnight in London after the theatre.
  2. 2suddenly or quickly Don't expect it to improve overnight. She became famous overnight.
See the Oxford Advanced American Dictionary entry: overnight

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