What part of speech is the word desolate?

The word "desolate" can be several parts of speech depending on how it is used in a sentence:

* Adjective: Describing something that is empty, barren, or lacking life.

* Example: "The desolate landscape stretched out before them."

* Verb: To make something empty, barren, or lacking life.

* Example: "The war desolated the entire country."

So, without context, it's impossible to definitively say which part of speech "desolate" is. You need to look at how it's used in the sentence to determine its role.