/ˌtʃiːf ɪˈzɛkjətɪv ˈɒfɪsə(r)/ – Phrase
Definition: Người điều hành cao nhất của một tổ chức hoặc công ty.
A more thorough explanation: the person with the most important position in a company and who has overall responsibility for the way that the company is run
Example: The CEO reports only to the board of directors. The rest of the company reports to him.