What part of speech is squeaky?

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

* Adjective: Describing something that makes a squeaking sound (e.g., "The squeaky door needs oil.")

* Noun: Referencing a person or thing that is known for being squeaky (e.g., "He's known as the squeaky wheel, always complaining.")

* Verb: To make a squeaking sound (e.g., "The old chair squeaked when I sat down.")

The context of the sentence will determine which part of speech is intended.