1.NounThe highest-ranking corporate officer or executive officer of a corporation, company, or agency, responsible for carrying out the policies of the board of directors on a day-to-day basis; CEO.
"{{cot|en|COO<id:Q623279>|chief operating officer<id:Q623279>|;|more at [[CXO#English:_Chief [X] Officer, with variable|CXO § Hyponyms]]}}"