n.
Pronunciation: ' rif
Function: noun
Etymology: probably by shortening & alteration from refrain
Date: 1935
1 : an ostinato phrase (as in jazz) typically supporting a solo improvisation also : a piece based on such a phrase
2 : a rapid energetic often improvised verbal outpouring especially : one that is part of a comic performance
3 : a succinct usually witty comment
4 : a distinct variation : TAKE <a disturbing ⋯ riff on the Cinderella story ― Daria Donnelly>