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Related to improvisor: improviser
v. im·pro·vised, im·pro·vis·ing, im·pro·vis·es
1. To make, compose, or perform with little or no preparation: improvise a solution to the problem; improvise variations on a melody.
2. To make or provide from available materials: improvised a dinner from what I found in the refrigerator.
1. To make, compose, or perform something extemporaneously.
2. To make do with whatever materials are at hand: There isn't much in the cabin. We'll just have to improvise.
[French improviser, from Italian improvvisare, from improvviso, unforeseen, from Latin imprōvīsus : in-, not; see in-1 + prōvīsus, past participle of prōvidēre, to foresee; see provide.]
im′pro·vis′er, im′pro·vi′sor n.
a variant spelling of improviser