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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

“Bud” Adams Jr.; television executive and producer Roone Arledge; longtime Oilers/Titans scout C.O.

From Seattle Times • Jul. 7, 2022

He told me that the C.O. who supervises him — from whom he might well have gotten sick — asked how he’d made out.

From New York Times • Apr. 6, 2021

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

From Salon • Aug. 8, 2020

And she rang her C.O. to let him know she had been asked to taxi one of her usual passengers from RAF Special Duties to an “Undisclosed Location.”

From "Code Name Verity" by Elizabeth Wein




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