What part of speech is works?

"Works" can be several parts of speech, depending on its context:

* Verb (present tense, third person singular): He *works* hard.

* Noun (plural): The artist's *works* are on display.

* Noun (singular): This is a *work* of art.

To determine the correct part of speech, you need to look at the sentence and how "works" is used.