* Verb (past tense): This is the most common use. Example: "She pushed the door open."
* Adjective: Describing something that is forced or pressed. Example: "The pushed-in door needed to be fixed."
* Noun: This is less common, but can be used to describe something that is forced or pushed. Example: "The company's marketing push was successful."
Let me know if you have a specific sentence in mind and I can tell you the part of speech for "pushed" in that context.