to compose and perform or deliver without previous preparation; extemporize: to improvise an acceptance speech.
2.
to compose, play, recite, or sing (verse, music, etc.) on the spur of the moment.
3.
to make, provide, or arrange from whatever materials are readily available: We improvised a dinner from yesterday's leftovers.
verb (used without object)
4.
to compose, utter, execute, or arrange anything extemporaneously: When the actor forgot his lines he had to improvise.
Origin: 1820–30; < Frenchimproviser, or its source, Italianimprovisare (later improvvisare), verbal derivative of improviso improvised < Latinimprōvīsus, equivalent to im-im-2 + prōvīsus past participle of prōvidēre to see beforehand, prepare, provide for (a future circumstance). See proviso
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
1826, from Fr. improviser (17c.), from It. improvisare "to sing or speak extempore," from improviso, from L. improvisus "unforeseen, unexpected" (see improvisation).