chief operating officerglossary / CHIEF OPERATING OFFICER chief operating officer. A manager who supervises a company’s day-to-day operations and who usu. reports to the chief executive officer. — Abbr. COO. 词条贡献者 法律翻译家欣,毕业于德国顶尖的高级翻译学院,专注翻译各类与体育诉讼有关的法律文件。