* Adjective: Describing something that comes immediately after something else.
* Example: "The next chapter is about the hero's journey."
* Adverb: Modifying a verb, adjective, or another adverb, indicating sequence or position.
* Example: "The train arrives next."
* Preposition: Showing the relationship between a noun or pronoun and another word in the sentence.
* Example: "He sat next to me."
* Pronoun: Referring to a noun previously mentioned.
* Example: "You go first; I'll take the next turn."
So, the part of speech for "next" depends on its specific role in the sentence.