riff
1. riff \'rif\ vb [short for riffle] : RIFFLE, SKIM {~ pages} 2. riff n [prob. by shortening & alter. fr. refrain] : an ostinato phrase in jazz typically supporting a solo improvisation 3. riff vi : to perform a jazz riff Riff \'rif\ \'rif-e-\ \'rif-e--*n\ n or Riffs or Riffi or Riff [Ar Rif] pl : a Berber of the Rif in northern Morocco