1. (

• fink ,
• snitch ,
• snitcher ,
• stoolpigeon ,
• stool_pigeon ,
• stoolie ,
• sneak ,
• sneaker ,
• canary ,

) someone acting as an informer or decoy for the police ;

1. (

• hook ,
• snitch ,
• thieve ,
• cop ,
• knock_off ,
• glom

) take by theft; "Someone snitched my wallet!" ;

2. (

• denounce ,
• tell_on ,
• betray ,
• give_away ,
• rat ,
• grass ,
• shit ,
• shop ,
• snitch ,
• stag ,

) give away information about somebody; "He told on his classmate who had cheated on the exam" ;