Here's why:
* Conjunctions connect words, phrases, or clauses. Common conjunctions include "and," "but," "or," "so," and "because."
* "Yet" is often used like a conjunction, especially when expressing contrast. For example: "I tried to call, yet I couldn't get through."
* Technically, "yet" is classified as an adverb. It modifies a verb, adjective, or other adverb, indicating a contrast or unexpected outcome.
So, while "yet" functions like a conjunction in many cases, it's grammatically considered an adverb.