chief operating officer chief of state • chief petty officer · · · Info · Definitions · Synonyms · Characters · · chief operating officer · · Text Common · · Latin · · Scripts 23 · · Length 8 · · Syllables Definitions · · · (noun) the corporate executive responsible for the operations of the firm; reports to a board of directors; may appoint other managers (including a president). Synonyms: chief executive officer, CEO, chief operating officer. · · Noun Definition 1 Synonyms · · · chief executive officer · · Synonym 1 ceo · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074