What kind of part or speech is the word some?

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

* Determiner: This is the most common use of "some". It functions as an adjective modifying a noun, indicating an unspecified quantity.

* Example: "I ate some cookies."

* Pronoun: "Some" can also act as a pronoun, referring to an unspecified amount of something.

* Example: "I need to buy some." (referring to unspecified items)

* Adverb: In a few specific cases, "some" can function as an adverb, meaning "to some extent" or "somewhat".

* Example: "The music is some louder than usual."

So, to know the part of speech of "some", you need to look at its role within the sentence!