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Verb: improvize  'im-pru,vIz
Usage: non-standard (=improvise)
  1. Perform without preparation
    "he improvized a speech at the wedding";
    - improvise, ad-lib, extemporize, extemporise [Brit], wing [informal], wing it [informal]

Derived forms: improvizes, improvizing, improvized

Type of: do, execute, perform

Encyclopedia: Improvize