What part of speech is walk?

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

* Verb: This is the most common usage. Example: "I walk to school every day."

* Noun: This is used to refer to the act of walking. Example: "I went for a long walk in the park."

* Adjective: This is less common, but it can describe something related to walking. Example: "I have a walk-in closet."

Let me know if you'd like more examples!