Meaning of “rogue” in the English Dictionary

"rogue" in British English

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rogueadjective [ before noun ]

uk /rəʊɡ/ us /roʊɡ/
go rogue

informal to start behaving in a way that is not normal or expected, especially by leaving your group and doing something dangerous:

A Special Forces unit had gone rogue and was trying to free the hostage.

roguenoun [ C ]

uk /rəʊɡ/ us /roʊɡ/

old-fashioned humorous a person who behaves badly but who you still like:

"Come here, you little rogue!" chuckled my uncle.
The women all think he's a lovable old rogue.

old-fashioned a dishonest or bad man

(Definition of “rogue” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"rogue" in American English

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roguenoun [ C ]

us /roʊɡ/

a person, organization, or country that does not behave in the usual or acceptable way:

Buzzy’s a fun-loving teenage rogue.
adjective [ not gradable ] us /roʊɡ/

A rogue employee might tap into the computer.

(Definition of “rogue” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"rogue" in Business English

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rogueadjective [ before noun ]

uk /rəʊɡ/ us

behaving in ways that are not expected or not normal, often in a harmful way:

There have been rogue firms in the past which have ripped customers off.
a rogue state

(Definition of “rogue” from the Cambridge Business English Dictionary © Cambridge University Press)