Similar words: sheriff, tariff, midriff, revenue tariff, protective tariff, iffy, sniff, quiff. Meaning: [rɪf] 
n. 1. a Berber living in northern Morocco 2. a jazz ostinato; usually provides a background for a solo improvisation. v. 1. look through a book or other written material 2. play riffs.
n. 1. a Berber living in northern Morocco 2. a jazz ostinato; usually provides a background for a solo improvisation. v. 1. look through a book or other written material 2. play riffs. 31. The mustachioed musician successfully claimed that he was joint author and copyright owner because he wrote a violin riff for the song.
32. The singers and guitarists would keep challenging the dancers with either a chant, hand clapping or just a riff.
33. You can practice this exercise with any riff, solo, or chord change.
34. As with every deal, the stables write-up will be joined with a riff from one of the four Groupon humor writers.
35. It was mainly the riff - raff o f the place that caused all the trouble.