IMPROVISING

Verb

improvising

present participle of improvise

Noun

improvising (plural improvisings)

improvisation

Source: Wiktionary

IMPROVISE

Im`pro*vise", v. t. [imp. & p. p. Improvised; p. pr. & vb. n. Improvising.] Etym: [F. improviser, it. improvvisare, fr. improvviso unprovided, sudden, extempore, L. improvisus; pref. im- not + provisus foreseen, provided. See Proviso.]

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, or make, on a sudden, or without previous preparation. 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.

Im`pro*vise", v. i.

Definition: To produce or render extemporaneous compositions, especially in verse or in music, without previous preparation; hence, to do anything offhand.

Source: Webster’s Unabridged Dictionary 1913 Edition