1. (noun) someone acting as an informer or decoy for the police

• canary
• fink
• sneak
• sneaker
• snitch
• snitcher
• stool pigeon
• stoolie

1. (noun) someone acting as an informer or decoy for the police

• betrayer
• blabber
• informer
• rat
• squealer

1. (noun) someone acting as an informer or decoy for the police

• betray
• betray
• denounce
• denounce
• give away
• give away
• grass
• grass
• rat
• rat
• shit
• shit
• shop
• shop
• snitch
• snitch
• stag
• stag
• tell on
• tell on
• confess
• fink
• squeal