WordWeb Online

1. Someone acting as an informer or decoy for the police
   - fink [N. Amer, informal], snitcher [informal], stoolpigeon [informal], stool pigeon [informal], stoolie [N. Amer, informal], sneak [informal], canary [N. Amer], snout [Brit, informal], grass [Brit, informal]
    
2. Someone who reports another person's wrongdoings to someone in authority
   "I told the teacher that I'm not a snitch and didn't want to get involved";
   - telltale [Brit, informal], grass [Brit, informal], tattletale [US, informal], talebearer [archaic], rat [informal], squealer [informal]

1. Take by theft
   "Someone snitched my wallet!";
   - hook [informal], thieve, cop [informal], knock off [informal], glom [N. Amer, informal], pilfer, cabbage [informal], purloin, pinch [Brit, informal], abstract, snarf [N. Amer, informal], swipe [informal], sneak [informal], filch [informal], nobble [Brit, informal], lift, whip [Brit, informal], nick [Brit, informal], snatch [informal], blag [Brit, informal]
    
2. Give away information about somebody
   - denounce, tell on, betray, give away, rat [informal], grass, shop [informal], stag, squeak [informal]

Derived forms: snitching, snitches, snitched

Type of: betrayer, blabber [informal], inform, informer, rat [informal], rip [N. Amer, informal], rip off [informal], squealer, steal

Encyclopedia: Snitch