DICT.TW Dictionary Taiwan

 Im·pro·vise v. t. [imp. & p. p. Improvised p. pr. & vb. n. Improvising.]
 1. To compose, recite, or sing extemporaneously, especially in verse; to extemporize; also, to play upon an instrument, or to act, extemporaneously.
 2. To bring about, arrange, do, or make, immediately or on short notice, without previous preparation and with no known precedent as a guide.
    Charles attempted to improvise a peace.   --Motley.
 3. To invent, or provide, offhand, or on the spur of the moment; as, he improvised a hammer out of a stone.