What part of speech is the word most?

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

* Adjective: When it modifies a noun, it's an adjective.

* Example: "The most popular song."

* Adverb: When it modifies an adjective or another adverb, it's an adverb.

* Example: "This is the most beautiful view I've ever seen." (modifying the adjective "beautiful")

* Pronoun: In some cases, "most" can act as a pronoun, referring to a previously mentioned noun or noun phrase.

* Example: "The company hired 100 new employees, most of whom were recent graduates."

Let me know if you have a specific sentence in mind and I can tell you how "most" functions in that context!