noun Street Slang

C.O.

SEE-OH · noun · informal

A correctional (corrections) officer; a prison guard.

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Definitions

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The standard term inmates and staff use for a uniformed prison guard.

“The C.O. did a cell check right after count.”
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C.O. In A Sentence

The C.O. did a cell check right after count.

Origin & Usage

Acronym for 'correctional officer.'

People Also Ask

What does C.O. stand for?

C.O. stands for 'correctional officer,' the standard term inmates and staff use for a uniformed prison guard.

Is C.O. slang or an official term?

It is more of a standard shorthand than pure slang; it is used by both staff and inmates and is the common everyday word for a prison guard.

How is C.O. used in a sentence?

Like any job title, as in 'The C.O. did a cell check right after count,' referring to the guard on duty.

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