A repeated instrumental melody line in a song. / A clever or witty remark. / A variation on something. / A spoof.

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

(anatomy, archaic) The belly; the bowels.

Alternative spelling of riffraff

(computing) Acronym of Resource Interchange File Format.

(informal) guitar riffs

(medicine) A mosquito-borne, acute, febrile, viral disease of humans and animals, caused by an RNA virus of the genus Phlebovirus, which occurs in northern and eastern Africa.

(geology) A graben structure between two tectonic plates which are opening relative to each other. / (geology) A mid-oceanic ridge system with central valleys.

A long-range rifle, usually equipped with a telescopic sight and often a night vision device.

A literary work or musical composition recast to adapt it to a change in the circumstances of the time.