crime-n; 3 Senses

Sense Number 1: an illegal or unlawful act

Commentary: CRIME[+action][+illegal]
NOTE: refers to something that is against the law.

Examples:
Studies show a decrease in crime over the past two decades.
He served six years in prison for a crime he did not commit.
This legislation would reclassify these illegal acts as hate crimes.
In that era it was not a crime to dump raw sewage into the bay.
He is being tried by an international tribunal for his crimes against humanity. (illegal act against many others)

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 2: a morally repugnant act, not necessarily illegal

Commentary: CRIME[+action][+repugnant][+morally]
NOTE: implies that the action should be regarded as illegal, even though it is not.

Examples:
It was considered a crime against civilization for the Taliban to destroy the giant Buddha statue.
The environmentalists view this policy as a crime against the old growth forests.

Mappings:
WordNet 0.0 Sense Numbers: 2

Sense Number 3: an unfortunate situation

Commentary: CRIME[+state][+unfortunate][+shameful/+wasteful]
NOTE: usually refers to a situation or state of affairs, not a specific act.
NOTE: unlike Senses 1 and 2, does not imply something of a truly serious nature.

Examples:
It's a crime to waste good food, let's save it for leftovers tomorrow.
It was a crime to visit Hawaii and spend most of the time indoors at meetings.
It'll be an unforgivable crime if you don't visit Aunt Jane when you are in Chicago.

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