What part of speech is silly?

"Silly" can be a few different parts of speech, depending on how it's used in a sentence:

* Adjective: Describing something as foolish or amusing.

* Example: "That's a silly hat."

* Noun: A foolish or amusing person.

* Example: "Don't be such a silly."

* Adverb: Describing an action as being done in a foolish or amusing way.

* Example: "He was acting silly."

So, the answer to your question depends on the context.