be on the ball be on cloud nine • be quiet · · · Info · Definitions · Synonyms · Characters · · be on the ball · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (verb) be well-informed. Synonyms: know the score, be with it, be on the ball, know what's going on, know what's what. · · Verb Definition 1 Synonyms · · · know the score · · Synonym 1 be with it · · Synonym 2 know what's going on · · Synonym 3 know what's what · · Synonym 4 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074