The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
CEO
1 ENTRIES FOUND:
CEO
(noun)
CEO
/ˌsiːˌiː
ˈ
oʊ/
noun
plural
CEOs
CEO
/ˌsiːˌiː
ˈ
oʊ/
noun
plural
CEOs
Britannica Dictionary definition of CEO
[
count
]
:
the person who has the most authority in an organization or business
◊
CEO
is an abbreviation of “chief executive officer.”
ASK THE EDITOR
In what ways is the word 'fish' used as singular and plural?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
egotist
:
a person who has the feeling or belief that they are better, more important, more talented, etc., than other people
Learn More »