fake
verb(fake)
tamper, with the purpose of deception
fake
noun(fake)
something that is a counterfeit; not what it seems to be
fake
adjective(fake)
not genuine or real; being an imitation of the genuine article
Examples:
It isn't fake anything; it's real synthetic fur. 
fake
verb(fake)
make a copy of with the intent to deceive
Examples:
He faked the signature. 
fake
adjective(fake)
fraudulent; having a misleading appearance
fake
noun(fake)
a person who makes deceitful pretenses
Synonyms: faker, 
fraud, 
imposter, 
impostor, 
pretender, 
pseud, 
pseudo, role player, 
sham, 
shammer, 
 fake
verb(fake)
speak insincerely or without regard for facts or truths
Examples:
The politician was not well prepared for the debate and faked it. 
fake
noun(fake)
(football) a deceptive move made by a football player