Definition of crystal clear adjective from the Oxford Advanced Learner's Dictionary


    crystal clear

    BrE BrE//ˌkrɪstl ˈklɪə(r)//
    ; NAmE NAmE//ˌkrɪstl ˈklɪr//
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  1. 1(of glass, water, etc.) completely clear and bright
  2. 2very easy to understand; completely obvious I want to make my meaning crystal clear. You’ve got to make your intentions crystal clear to them.
See the Oxford Advanced American Dictionary entry: crystal clear