billionaire billion • billionism · · · Info · Definitions · Characters · · billionaire · · Text Latin · · Script 11 · · Length Definitions · · · (noun) a very rich person whose material wealth is valued at more than a billion dollars. · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072