RIFF

riff

(noun) a jazz ostinato; usually provides a background for a solo improvisation

Riff, Riffian

(noun) a Berber living in northern Morocco

riff

(verb) play riffs

Source: WordNet® 3.1

---

Etymology 1

Noun

riff (plural riffs)

A repeated instrumental melody line in a song.

A clever or witty remark.

A variation on something.

A spoof.

Verb

riff (third-person singular simple present riffs, present participle riffing, simple past and past participle riffed)

To improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.

To riffle.

Etymology 2

Noun

riff (plural riffs)

(anatomy, archaic) The belly; the bowels.

Proper noun

RIFF

(computing) Acronym of Resource Interchange File Format.

Source: Wiktionary

---