Is eaten a pronoun or noun?

"Eaten" is neither a pronoun nor a noun. It is the past participle of the verb "eat."

Here's why:

* Pronouns replace nouns (e.g., he, she, it, they).

* Nouns name people, places, things, or ideas.

"Eaten" functions as part of a verb phrase, typically used in passive voice constructions (e.g., "The cake was eaten").

Let me know if you'd like to explore other parts of speech!