verb
ad-lib*, coin, devise, extemporize; see invent 1.
See improvise in Webster's New World Roget's A-Z Thesaurus II
To compose or recite without preparation:
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Also Mentioned In
» ad-lib
» blow
» cobble
» device
» ear
» extemporize
» fugue
» jam
» jive
» noodle
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