Oxford Dictionary English chief executive officer nounnoun BrE BrE//ˌtʃiːf ɪɡˈzekjətɪv ɒfɪsə(r)// ; NAmE NAmE//ˌtʃiːf ɪɡˈzekjətɪv ɑːfɪsər// , NAmE//ˌtʃiːf ɪɡˈzekjətɪv ɔːfɪsər// (abbreviation CEO) Business people Add to my wordlistjump to other results the person in a company who has the most power and authority See related entries: Business peopleSee chief executive officer in the Oxford Advanced American DictionaryCheck pronunciation: chief executive officer oxfordlearnersdictionaries.com