What part of speech is the word cave?

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

* Noun: This is the most common usage. It refers to a natural hollow in the earth.

* Example: "The explorers ventured deep into the cave."

* Verb: This is less common, but it means to hollow out or make a cave.

* Example: "The river caved in the hillside."

* Adjective: This is even less common, but it can be used to describe something like a cave, or related to caves.

* Example: "The cave dwellers were skilled hunters."

Let me know if you have a specific sentence in mind, and I can help you determine the part of speech of "cave" within that sentence!