Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Language: French
Origin: improviser, from Italian, from improvviso 'sudden'

improvise

verb
     
Related topics: Music, Theatre
im‧pro‧vise [intransitive and transitive]
1 to do something without any preparation, because you are forced to do this by unexpected events:
I forgot to bring my notes, so I had to improvise.
2 to make something by using whatever you can find because you do not have the equipment or materials that you need:
There were no nappies, so we had to improvise with what we could find.
Annie improvised a sandpit for the children.
3 to invent music, words, a statement etc from your imagination, rather than planning or preparing it first:
I just started playing, and the other guys started improvising around me.
an improvised sketch
improvisation noun [uncountable and countable]

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