Definition of during preposition from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈdjʊərɪŋ//
    ; NAmE NAmE//ˈdʊrɪŋ//
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  1. 1  all through a period of time during the 1990s There are extra flights to Colorado during the winter. Please remain seated during the performance.
  2. 2  at some point in a period of time He was taken to the hospital during the night. I only saw her once during my stay in Rome.
  3. During is used to say when something happens; for answers the question ‘how long?’I stayed in London for a week.I stayed in London during a week.
    Word Originlate Middle English: present participle of the obsolete verb dure ‘last, endure, extend’, via Old French from Latin durare ‘to last’, from durus ‘hard’.
See the Oxford Advanced American Dictionary entry: during