What does forgery mean?

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From our dictionary:

for•ger•y

Pronunciation: (fôr'ju-rE, fOr'-), [key]
n.,
pl. -ger•ies.

1. the crime of falsely making or altering a writing by which the legal rights or obligations of another person are apparently affected; simulated signing of another person's name to any such writing whether or not it is also the forger's name.
2. the production of a spurious work that is claimed to be genuine, as a coin, a painting, or the like.
3. something, as a coin, a work of art, or a writing, produced by forgery.
4. an act of producing something forged.
5. Archaic.invention; artifice.