* Noun: This is the most common usage. It refers to the fluffy white fibers from the cotton plant.
* Example: "The farmer harvested a bale of cotton."
* Adjective: This describes something made from cotton or having the quality of cotton.
* Example: "She wore a cotton dress."
* Verb: This is less common but can be used to mean "to gather cotton" or "to cover with cotton".
* Example: "The workers cottoned the fields."
So, the part of speech for "cotton" depends on its context within a sentence.