AS is what the part of speech?

"AS" can be a few different parts of speech depending on its use in a sentence. Here are some examples:

* Preposition: Used to introduce a phrase that tells the relationship between two things.

* "He arrived as promised."

* Conjunction: Connects words, phrases, or clauses.

* "He acts as if he's the boss."

* "I work as a writer."

* Adverb: Modifies a verb, adjective, or another adverb.

* "The cat meowed as loud as it could."

To determine the specific part of speech, you need to examine the context of the sentence.