from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Another side of oneself; a second self.
  • n. An intimate friend or a constant companion.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Somebody's alternate personality or persona; another self.
  • n. A very close and intimate friend.

from The Century Dictionary and Cyclopedia

  • Second self; another self; counterpart; double.

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

  • n. a very close and trusted friend who seems almost a part of yourself


Latin : alter, other + ego, I, self.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin "other self", which is a translation of Zeno's Citium "allos ego" [2] (Wiktionary)


  • His alter ego was Delaroche, to whom he gave his daughter in marriage.


  • Evan Huter and his alter ego Ed McBain combined their talents to create Candyland, a novel in two parts, available from Pocket Books.

    The Chisholms

  • I sense that perhaps Wooden Boulder has become an alter ego for Nash: its unfolding story part of his life, the restless thing itself an embodiment of his soul.


  • "My alter ego Demoness Mentia is doing that, and keeping an eye on my seven-year-old son, Ted.

    Cube Route

  • Even back when I was nominally happy, my friend Bryce actually went so far as to create a superhero alter ego for me: The Amazing Sublimated Man.

    Miss Misery


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  • HA! A saggy SoG!

    January 7, 2008

  • I abhor disguises....

    The Fly

    January 5, 2008

  • Plus, glasses?! That's a disguise? Wouldn't somebody notice?

    October 23, 2007

  • But why Clark Kent? I mean, I'd at least be Donald Trump or somebody. Now Batman, there's a super with panache!

    October 23, 2007

  • Yeah, but maybe he just fantasizes about being a regular guy. I mean, it's weird, but then again, he's from another planet and weird in many ways.

    October 23, 2007

  • You could alter your super metabolism so that you'd never even get tired!

    October 23, 2007

  • It's probably too much work being Superman ALL the time. Wouldn't you think so?

    October 23, 2007

  • That part of a superhero that his/her arch enemy or arch nemesis can never discover, lest...lest... Come to think of it, why not drop the Clark Kent thing and just be Superman? If you could be Superman all the time or swap time between a guy that can see through walls and a wimpy reporter, which would you choose?

    October 23, 2007