What term is used to describe something that is forged or made illegally or falsely?

The term that describes something that is forged or made illegally or falsely is "counterfeit." This word specifically refers to any imitation or reproduction of an item, document, or currency that is designed to deceive or fraudulently represent its authenticity or value. Counterfeiting often involves the creation of fake goods, money, or documents with the intention of tricking individuals or entities into accepting them as genuine.

In contexts where legitimacy is paramount, such as finance, legal documentation, or brand goods, the act of counterfeiting can lead to significant legal consequences and ethical violations. Understanding this term is crucial for recognizing issues related to fraud and ensuring the integrity of various systems in society.