1. Perform without preparation
   - improvise, ad-lib, extemporize, extemporise [Brit]

Derived forms: improvized, improvizes, improvizing

Type of: do, execute, perform

Encyclopedia: Improvize

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• day jessamine
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• Day of Atonement
• Day of Judgement
• Day of Judgment
• day of reckoning
• day of remembrance
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• day of the month
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