riff
1 Americannoun
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Jazz. a melodic phrase, often constantly repeated, forming an accompaniment or part of an accompaniment for a soloist.
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a new variation on or a different manifestation of an existing thing or idea (often followed byon ).
This is an eco-conscious riff on the study-abroad experience.
verb (used without object)
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Jazz. to perform a repeated melodic phrase, forming an accompaniment for a soloist.
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to experiment with a thing or idea, making changes that create a new and novel version of it (often followed byon ).
My partner likes to let his ideas quietly simmer, but I prefer to riff on mine in conversations where I can bounce my thoughts off other people.
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to create, write, or perform something, like a comedy routine, using a common or known point of departure and following a previously unexplored tangent from that known point to a fresh or humorous perspective (often followed by on oroff ).
My act riffs off famous love stories and adds modern feminist elements to unmask the absurdity of “happily ever after” in fairy tales.
noun
verb
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(intr) to play or perform riffs in jazz or rock music
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informal to speak amusingly or make (amusing comments or remarks)
Other Word Forms
Derived Forms
Etymology
Origin of riff
First recorded in 1930–35; perhaps alteration and shortening of refrain 2
Explanation
A riff is a short section of music, especially in jazz. When you're first learning to play the saxophone, you may just play the same riff over and over. When one jazz musician in a band is improvising, the others are typically playing riffs in the background. Sometimes a riff introduces the start of a song or its chorus. To play this section is also to riff, and you can also talk about improvised speech using riff: "The stand-up comic decided to riff on the subject of his mom, since it was the only joke that was getting any laughs."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The tongue-in-cheek title track positively swaggers, while “The Riff That Won’t Quit” lives up to its name.
From Los Angeles Times • Apr. 17, 2026
Of the singing actors that come from musical theater, Amando Castro is a fiery Anita; P. Tucker Worley, buoyant Riff; Yurel Echezarreta, a suave Bernardo.
From Los Angeles Times • Sep. 29, 2025
The former host of the Crystal Maze is immortalised in his role as Riff Raff in the Rocky Horror Picture Show.
From BBC • Dec. 15, 2024
Last week, I published a profile of the 36-year-old singer-songwriter Alynda Segarra, who makes spirited and defiant music under the name Hurray for the Riff Raff.*
From New York Times • Feb. 23, 2024
"I could ask her what kind of a jam they think they've gotten into in the Riff."
From "The Sun Also Rises" by Ernest Hemingway
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.