snitch has definitions from the field of criminal law
1
[ verb ] give away information about somebody

Examples

"He told on his classmate who had cheated on the exam"

2
[ verb ] (criminal law) take by theft

Examples

"Someone snitched my wallet!"

Related terms

steal larceny

3
[ noun ] someone acting as an informer or decoy for the police

Related terms

informer denounce

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