Definition of advance adjective from the Oxford Advanced Learner's Dictionary

     

    advance

     adjective
    adjective
    BrE BrE//ədˈvɑːns//
     
    ; NAmE NAmE//ədˈvæns//
     
    [only before noun]
     
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  1. 1done or given before something is going to happen Please give us advance warning of any changes. We need advance notice of the numbers involved. No advance booking is necessary on most departures.
  2. 2advance party/team a group of people who go somewhere first, before the main group The advance party for a winter ascent of Mount Everest has arrived in Nepal.
  3. Word Origin Middle English: from Old French avance (noun), avancer (verb), from late Latin abante ‘in front’, from ab ‘from’ + ante ‘before’. The initial a- was mistakenly assimilated to ad- in the 16th cent.
See the Oxford Advanced American Dictionary entry: advance