cassius clay Cassius • cassius longinus · · · Info · Definitions · Characters · · cassius clay · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) United States prizefighter who won the world heavyweight championship three times (born in 1942). Synonyms: Ali, Muhammad Ali, Cassius Clay, Cassius Marcellus Clay. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C s latin small letter s U+0073 u latin small letter u U+0075 y latin small letter y U+0079