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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

Men on their bars watched the C.O. pick up, nod, hang up and walk to different cells.

From New York Times • Apr. 6, 2021

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

Permission for flight obtained from C.O. and I had made 4 successful night landings, 3 on simulated flare path, immed. previous to departure.

From "Code Name Verity" by Elizabeth Wein




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