Definition of bastion noun from the Oxford Advanced Learner's Dictionary

     

    bastion

     noun
    noun
    BrE BrE//ˈbæstiən//
     
    ; NAmE NAmE//ˈbæstiən//
     
     
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  1. 1(formal) a group of people or a system that protects a way of life or a belief when it seems that it may disappear a bastion of male privilege a bastion of freedom
  2. 2a place that military forces are defending Singapore was the last bastion of British defences in South-East Asia.
  3. Word Origin mid 16th cent.: from French, from Italian bastione, from bastire ‘build’.
See the Oxford Advanced American Dictionary entry: bastion