ＣＥＯ

also: シーイーオー

Freq.FrequencyTop 10,000

Meanings

Standard business term for the highest-ranking executive in a company. Used in Japanese corporate contexts, often alongside the Japanese term 最高経営責任者.

Usage patterns

〈会社かいしゃ〉のＣＥＯのしー・いー・おーthe CEO of a company
彼かれはその会かい社しゃのＣＥＯです。
He is the CEO of that company.
ＣＥＯに就任するしー・いー・おーにしゅうにんするto be appointed as CEO
彼かの女じょは来らい月げつＣＥＯに就しゅう任にんする予よ定ていだ。
She is set to be appointed CEO next month.
ＣＥＯを務めるしー・いー・おーをつとめるto serve as CEO
彼かれは十じゅう年ねん以い上じょうＣＥＯを務つとめている。
He has served as CEO for over ten years.

Related words

社しゃ長ちょうN5
社長 is the traditional Japanese title for a company president and may or may not carry the same authority as a Western-style ＣＥＯ, which specifically denotes the top executive decision-maker.
代だい表ひょう取とり締しまり役やく
代表取締役 is the legally defined corporate title for a company's representative director, which roughly corresponds to but is not identical to the role of ＣＥＯ.

Politeness

最さい高こう経けい営えい責せき任にん者しゃpolite 丁寧語
ＣＥＯ is the English abbreviation commonly used in casual and business speech, while 最高経営責任者 is the formal Japanese term used in official documents.

Etymology

Borrowed from English 'chief executive officer', abbreviated as CEO. The reading reflects the English letter names.