improvise
1. [ verb ] (music) perform without preparation
Synonyms: extemporize extemporise improvize ad-lib
Examples:

"he extemporized a speech at the wedding"

Related terms: perform extemporization improvisation improvisation
2. [ verb ] manage in a makeshift way; do with whatever is at hand
Synonyms: extemporize
Examples:

"after the hurricane destroyed our house, we had to improvise for weeks"

Related terms: cope improvisation
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