What part of speech is the word Extra?

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

* Adjective: Describing something as additional or beyond the usual amount.

* Example: "I need an extra cup of coffee."

* Noun: Something that is additional or beyond the usual amount.

* Example: "The movie had an extra scene at the end."

* Adverb: Meaning "in addition" or "more than usual."

* Example: "The pizza is extra cheesy."

So, to determine the part of speech, you need to look at the context in which the word is used.