* Adjective: Describes something that is fake or imitation.
* Example: "The police confiscated a bag of counterfeit money."
* Noun: Refers to something that is fake or imitation.
* Example: "The painting was discovered to be a counterfeit."
* Verb: Means to make a fake copy of something.
* Example: "They counterfeited the designer handbags."
So, the part of speech for "counterfeit" depends on its function in the sentence.