* Adjective: Describing something that is not genuine or authentic.
* Example: "That's a fake diamond ring."
* Noun: A thing that is not genuine.
* Example: "He was caught selling fakes."
* Verb: To make something appear genuine when it is not.
* Example: "The company was faking their financial reports."
It's important to understand the context of the sentence to determine which part of speech "fake" is acting as.