a workshop where metals are heated and shaped, especially one used for making shoes for horses; (a workshop with) a furnace for melting metal; to make a copy of (e.g. a signature, banknote, will) in order to deceive

counterfeit

to (try to) copy the behaviour, appearance, sound, actions etc of (a person, animal, thing)

pretend to be; do an impression of

to make oneself appear (to be (doing) something) either in play or to deceive others

fake, falsify

to declare that one has (beliefs, likes, ignorance, interests etc)

declare, assert

to pretend to be, have or feel (something)

pretend, imitate