Ali
       n 1: United States prizefighter who won the world heavyweight
            championship three times (born in 1942) [syn: Muhammad
            Ali, Cassius Clay, Cassius Marcellus Clay]
       2: the fourth caliph of Islam who is considered to be the first
          caliph by Shiites; he was a cousin and son-in-law of
          Muhammad; after his assination Islam was divided into
          Shiite and Sunnite sects