English Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition C.O. in British English

C.O. noun

[countable] noun
/ˌsiː ˈəʊ/
1

Commanding Officer: an officer in charge of a military unit

Synonyms and related words
Definition C.O. in British English