* Adjective: Describes a noun, indicating that something is open to discussion or argument.
* Example: "That's a debatable claim."
* Verb: Means to argue about or discuss something.
* Example: "We debated the merits of different political systems."
* Noun: Refers to the act of debating or arguing.
* Example: "There was a lot of debate about the new policy."
So, the part of speech for "debatable" depends on the context of the sentence.