What part of speech is latter?

"Latter" can be either an adjective or a pronoun, depending on how it's used in a sentence.

As an adjective:

* It means "second of two things mentioned".

* Example: "Of the two choices, I prefer the latter."

As a pronoun:

* It refers to the second of two things previously mentioned.

* Example: "The first option is expensive, but the latter is more affordable."

Let me know if you have any other words you'd like to understand the part of speech for!