from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun One who traitorously switches allegiance.

from The Century Dictionary.

  • noun One who “turns his coat”—that is, forsakes his party or principles.

from the GNU version of the Collaborative International Dictionary of English.

  • noun One who forsakes his party or his principles; a renegade; an apostate; a defector to the enemy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A traitor; one who turns against a previous affiliation or allegiance.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a disloyal person who betrays or deserts his cause or religion or political party or friend etc.


from Wiktionary, Creative Commons Attribution/Share-Alike License

From turn +‎ coat.


  • The very thing Specter sought to avoid by becoming a turncoat is now coming to pass.

    Frank to endorse Sestak's bid to unseat Specter

  • Hobbesian philosophy seemed to have been on target, since offering Indian indigenous leaders the reward and opportunity to engage in turncoat behavior toward their own people managed indeed to establish collaborative efforts with British colonialists.

    Radovan Karadzic's website and blog

  • You will be known as a turncoat who supported York.

    The Red Queen

  • Does anyone know why this turncoat is still allowed to live in Washington D.C. He did nothing to help Al Gore 8 years ago and he only here to play get back to the democrats.

    Lieberman attacks Obama over foreign policy

  • In Worldwar II, they called turncoat by a different name and the punishment wasn't very nice.

    Crooks and Liars

  • The Wales ace has become a firm favourite with Swans supporters since arriving at the Liberty - but it's left him being labelled a turncoat by Cardiff fans.

    WalesOnline - Home

  • I tried calling turncoat Snowe and it was disconnected.

    Hot Air » Top Picks

  • Gotti shocked observers on Thursday by launching into a furious tirade against ex-pal John Alite, calling the turncoat mobster a "fag," a "punk" and a "dog" after Alite, on his way out of the courtroom, turned to Gotti and said: "You got something to say to me?"

    NY Post: News

  • The "turncoat" was an informer named Dickenson, from

    Heroes or Villains?

  • In his private diary, Mr. Reagan noted that the magazine labeled him a "turncoat" and said conservative activist Richard Viguerie sent him a copy of the magazine along with a letter.

    Obama Reclaims Some Independence


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  • I've used this word many of times referring to my ex-best friend

    October 1, 2010