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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

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

If you do your job—at the D.M.V. or as a C.O. or a pfc.—equity and fairness are, achingly, protected.

From The New Yorker • Aug. 22, 2016

But at the end of the year, the authorities concluded that they wanted a different atmosphere on the island, and Colonel Piet Badenhorst was named the new C.O. of Robben Island.

From "Long Walk to Freedom" by Nelson Mandela




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