What part of speech is as?

The part of speech of as is a preposition when it indicates someone’s job or role (e.g., “He worked as a bartender before he was famous”).

“As” is a conjunction when it means “at the same time” (e.g., “She told me as I was leaving”) and “the way” (e.g., “I did it exactly as it said in the instructions”).

It’s difficult to know whether to choose like or as in some contexts—“as,” not “like,” is the correct word in the phrase “the same X as” (e.g., “You have the same birthday as me”).

You can ask QuillBot’s free AI Chat to help you identify the part of speech of “as” in different sentences.