Meaning of “crime” - Learner’s Dictionary

crime

noun us uk /kraɪm/
ILLEGAL ACTIVITIES [ U ]

B1 illegal activities:

violent crime
Tough new measures have been introduced to fight crime.

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ILLEGAL ACT [ C ]

B1 something someone does that is illegal:

He committed a serious crime.
→ See also war crime

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(Definition of “crime” from the Cambridge Learner’s Dictionary © Cambridge University Press)