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Definitions

C.O.

NOUN
conscientious objector
Synonyms


co
NOUN
carbon monoxide
Synonyms


NOUN
commanding officer
Synonyms






Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Instead, it was “so many people screaming, screaming to talk to each other. Screaming for assistance: ‘Yo, C.O., my toilet flooded.

From Slate • May 19, 2025

The C.O. sat glued to this chair, looking bored.

From Salon • Aug. 8, 2020

An older, more-seasoned lifeboat pilot, future station C.O.

From Seattle Times • Aug. 18, 2019

Ian Ginsberg stood in his West Village office above C.O.

From New York Times • Feb. 1, 2019

“You should ask your C.O. about Special Duties flying,” she said to Jamie.

From "Code Name Verity" by Elizabeth Wein




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