crime /ˈkraɪm/ noun
plural crimes
plural crimes
Learner's definition of CRIME
[count] : an illegal act for which someone can be punished by the government
see also war crime, white-collar crime
[noncount] : activity that is against the law : illegal acts in general
often used before another noun
◊ Someone's partner in crime is a person who helps someone commit a crime.
[singular] : an act that is foolish or wrong

crime against humanity

: a very cruel or terrible illegal act that is directed against a group of people