1. (noun) one who reveals confidential information in return for money

• betrayer
• blabber
• rat
• squealer

1. (noun) one who reveals confidential information in return for money

• canary
• fink
• sneak
• sneaker
• snitch
• snitcher
• stool pigeon
• stoolie
• stoolpigeon
• copper's nark
• nark
• grass
• supergrass

1. (noun) one who reveals confidential information in return for money

• informant
• source

1. (noun) one who reveals confidential information in return for money

• babble
• babble out
• blab
• blab out
• let the cat out of the bag
• peach
• sing
• spill the beans
• talk
• tattle
• betray
• betray
• denounce
• denounce
• give away
• give away
• grass
• grass
• rat
• rat
• shit
• shit
• shop
• shop
• snitch
• snitch
• stag
• stag
• tell on
• tell on
• betray
• sell
• blab
• blabber
• chatter
• clack
• gabble
• gibber
• maunder
• palaver
• piffle
• prate
• prattle
• tattle
• tittle-tattle
• twaddle
• confess
• fink
• squeal
• inform