be on cloud nine be on • be on the ball · · · Info · Definitions · Synonyms · Characters · · be on cloud nine · · Text Common · · Latin · · Scripts 16 · · Length 4 · · Syllables Definitions · · · (verb) feel extreme happiness or elation. Synonyms: exult, walk on air, be on cloud nine, jump for joy. · · Verb Definition 1 Synonyms · · · exult · · Synonym 1 walk on air · · Synonym 2 jump for joy · · Synonym 3 Characters · · space U+0020 b latin small letter b U+0062 c latin small letter c U+0063 d latin small letter d U+0064 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 u latin small letter u U+0075