What part of speech is the word plenty?

"Plenty" can be a few different parts of speech depending on its use in a sentence:

* Noun: When referring to a large amount or quantity.

* Example: "There's plenty of food left over."

* Adjective: When used to describe something as being abundant or sufficient.

* Example: "We have plenty of time to get there."

* Adverb: Less common, but can be used to emphasize abundance.

* Example: "There are plenty of opportunities for success."

It's important to understand the context of the sentence to determine the correct part of speech for "plenty."