Commanding Officer.
CO
SEE-OH
siː əʊ
Noun
Example Sentences
"The CO said..."
"Report to the CO."
Etymology & History
Military abbreviation for unit commander.
Word Details
📍
Region
United Kingdom
📅
Era
1800s
✓
Language
none
💬
Formality
formal
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Anglotopia's Dictionary of British English 2nd Edition
British Slang from A to Zed
By Jonathan Thomas
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