[im.pro.vise] vb -vised ; -vis.ing [F improviser, fr. It improvvisare, fr. improvviso sudden, fr. L improvisus, lit., unforeseen, fr. in- + provisus, pp. of providere to see ahead--more at provide] vt (1826) 1: to compose, recite, play, or sing extemporaneously
2: to make, invent, or arrange offhand
3: to fabricate out of what is conveniently on hand ~ vi: to improvise something -- im.pro.vis.er or im.pro.vi.sor n