What part of speech is jumped?

"Jumped" can be a few different parts of speech, depending on its context:

* Verb (past tense): This is the most common usage. For example, "The dog jumped over the fence."

* Adjective: This is less common but possible. For example, "The jumped-up kid thought he was better than everyone else." (This usage means "arrogant" or "pretentious")

To determine the correct part of speech, you need to look at the sentence it's used in.