A disloyal person who betrays or deserts his cause or religion or political party or friend etc..

synonyms: apostate, deserter, recreant, renegade, turncoat.

Dutch: overloper, outlaw, afgevallene, afvallige, apostaat, deserteur, dissident, geloofsverzaker, kerkverlater
Polish: apostata, odstępca, odszczepieniec, przechrzta, zaprzaniec

Any of several breeds of terrier developed to catch rats.

synonym: rat terrier.