Fake

Forge: make a copy of with the intent to deceive 
Something that is a counterfeit; not what it seems to be
Fudge: tamper, with the purpose of deception
Imposter: a person who makes deceitful pretenses
Bogus: fraudulent; having a misleading appearance
Talk through one's hat: speak insincerely or without regard for facts or truths
Not genuine or real; being an imitation of the genuine article
www.wordnetweb.princeton.edu/perl/webwn

1. (tr) to cause (something inferior or not genuine) to appear more valuable, desirable, or real by fraud or pretence
http://www.thefreedictionary.com/fake
 
adj.
Having a false or misleading appearance; fraudulent.
n.
1.One that is not authentic or genuine; a sham.
2.Sports. A brief feint or aborted change of direction intended to mislead one's opponent or the opposing team.
v., faked, fak·ing, fakes.
v.tr.
1.To contrive and present as genuine; counterfeit.
2.To simulate; feign.
3.Music. To improvise (a passage).
4.Sports. To deceive (an opponent) with a fake. Often used with out.
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