noun /ˈfɔː.dʒər.ɪ,ˈfɔːr.dʒər.ɪ/
b) 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.
Wikipedia foundation.