The Collaborative International Dictionary of English v.0.48:

phoney \pho"ney\ (f[=o]"n[=e]), a. [Also spelled phony.]
   [Compar. phonier; superl. phoniest.]
   1. Imitating something superior; intended to deceive;
      fraudulent; having a misleading appearance; not genuine;
      false; counterfeit; fake; as, a phoney diamond; a phoney
      hundred-dollar bill.

   Syn: bogus, counterfeit, fake, ersatz; fraudulent; false.
        [PJC]

   2. Pretending to be other than one is; putting on false
      appearances; insincere; hypocritical; -- of people.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

phoney \pho"ney\ (f[=o]"n[=e]), n.
   Something or someone that is phoney. [Also spelled phony.]
   [PJC]

The Collaborative International Dictionary of English v.0.48:

phony \pho"ny\ (f[=o]"n[=e]), a. [Also spelled phoney.]
   [Compar. phonier; superl. phoniest.]
   1. imitating something superior; intended to deceive;
      fraudulent; having a misleading appearance; not genuine;
      counterfeit; fake; as, a phony diamond; a phony
      hundred-dollar bill.

   Syn: phoney, bogus, counterfeit, fake.
        [PJC]

   2. Pretending to be other than one is; putting on false
      appearances; insincere; hypocritical; -- of people.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

phony \pho"ny\ (f[=o]"n[=e]), n.
   Something or someone that is phony. [Also spelled phoney.]
   [PJC]

WordNet (r) 3.0 (2006):

phony
    adj 1: fraudulent; having a misleading appearance [syn: bogus,
           fake, phony, phoney, bastard]
    n 1: a person who professes beliefs and opinions that he or she
         does not hold in order to conceal his or her real feelings
         or motives [syn: hypocrite, dissembler, dissimulator,
         phony, phoney, pretender]

Moby Thesaurus II by Grady Ward, 1.0:

241 Moby Thesaurus words for "phony":
   Joseph Surface, Pecksniff, Tartuffe, actor, affected, affecter,
   agent, alike, alternate, alternative, analogy, ape, aped,
   apocryphal, artificial, assumed, backup, bastard, blagueur, bluff,
   bluffer, bogus, brummagem, canter, certified copy, change,
   changeling, charlatan, cheat, clinquant, colorable, colored,
   comparison, conformist, consimilar, copied, copier, copy, copycat,
   copyist, counterfeit, counterfeited, counterfeiter, cuckoo,
   deceiver, deputy, dissembler, dissimulator, distorted, double,
   dressed up, dummy, echo, echoer, echoist, ectype, embellished,
   embroidered, equal, equivalent, ersatz, exchange, factitious,
   fair copy, fair-weather friend, faithful copy, fake, faked,
   fakement, faker, false, false friend, falsified, favoring, feigned,
   fictitious, fictive, fill-in, following, forged, forger, forgery,
   fourflusher, frame-up, fraud, garbled, ghost, ghostwriter, hoax,
   hokey, hollow man, homogeneous, humbug, hypocrite, hypocritical,
   icon, identical, illegitimate, image, imitated, imitation,
   imitator, impersonator, impostor, junk, junky, like, likeness,
   locum tenens, make-believe, makeshift, malingerer, man of straw,
   man-made, mannerist, mealymouth, metaphor, metonymy, mime, mimer,
   mimic, mimicked, mimicker, mock, mocker, mockingbird, monkey,
   mountebank, nearly reproduced, next best thing, not unlike,
   paper tiger, parrot, paste, pasticcio, pastiche, performer,
   personnel, perverted, pharisee, picture, pinch, pinch hitter,
   pinchbeck, plagiarist, plagiarized, playactor, poll-parrot, polly,
   polly-parrot, portrait, poser, poseur, pretended, pretender,
   provisional, proxy, pseudo, put-on, put-up job, quack, quacksalver,
   quackster, quasi, queer, relief, replacement, representation,
   representative, resemblance, resembling, reserve, reserves, ringer,
   rip-off, saltimbanco, sanctimonious fraud, second string,
   secondary, self-styled, semblance, sham, shammer, sheep, shoddy,
   sign, similar, similitude, simulacrum, simulated, simulator,
   smacking of, snide, snuffler, so-called, soi-disant,
   something like, spare, spares, spoof, spurious, stand-in, stopgap,
   straw man, sub, substituent, substitute, substitution, succedaneum,
   suggestive of, summer soldier, superseder, supplanter,
   supposititious, surrogate, swindle, symbol, synecdoche, synthetic,
   temporary, tentative, third string, tin, tinsel, titivated, token,
   twisted, unauthentic, understudy, ungenuine, uniform with,
   unnatural, unreal, utility, utility player, vicar, vicarious,
   vice-president, vice-regent, warped, whited sepulcher