forgery

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The act of forging, especially the illegal production of something counterfeit.
2. n. Something counterfeit, forged, or fraudulent.

Century Dictionary and Cyclopedia

1. n. The act of forging or working metal into shape.
2. n. Invention; devising.
3. n. The act of fabricating or producing falsely; the making of a thing in imitation of another thing, as a legal document, commercial paper or coin, a literary production, a work of art, a natural object, etc., with a view to deceive, mislead, or defraud; specifically, the act of fraudulently making, counterfeiting, or altering any record, instrument, register, note, or the like, to the prejudice of the right of another: as, the forgery of a check or a bond. In criminal law It denotes (at common law) a false making of any instrument by which one person can become obligated to another (including every alteration of or addition to a true instrument), with criminal intent, for purposes of fraud and deceit; the making or altering a writing so as to make the alteration or the writing purport to be the act of some person whose act it is not; the false making of an instrument which purports to be that which it is not, as distinguished from an instrument which purports to be what it really is, but contains false statements. The definition is much enlarged by various statutes in different jurisdictions, under which many acts not originally forgery are punishable as such. See counterfeit, n., 2.
4. n. That which is forged, fabricated, falsely or fraudulently devised, or counterfeited; any instrument which fraudulently purports to be that which it is not.

Wiktionary

1. n. The act of forging metal into shape.
2. n. The act of forging, fabricating, or producing falsely; especially the crime of fraudulently making or altering a writing or signature purporting to be made by another, the false making or material alteration of or addition to a written instrument for the purpose of deceit and fraud; as, the forgery of a bond.
3. n. That which is forged, fabricated, falsely devised or counterfeited.
4. n. archaic An invention, creation.

GNU Webster's 1913

1. n. obsolete The act of forging metal into shape.
2. n. The act of forging, fabricating, or producing falsely; esp., the crime of fraudulently making or altering a writing or signature purporting to be made by another; the false making or material alteration of or addition to a written instrument for the purpose of deceit and fraud.
3. n. That which is forged, fabricated, falsely devised, or counterfeited.

WordNet 3.0

1. n. criminal falsification by making or altering an instrument with intent to defraud
2. n. a copy that is represented as the original