The definition of a riff is a short rhythm phrase used in music, that is often played when a soloist is performing or when chords and harmonies are changing.(noun)
An example of a riff is a repeated phrase that is used to lead up to an improvisational solo or used behind a solo in a song.
See riff in Webster's New World College Dictionary
Origin: prob. altered < refrain
See riff in American Heritage Dictionary 4
Origin: Origin unknown.
or Rifnoun pl. Riff or Riffs or Rif or Rifs also Rif·fi (rĭfˈē)
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