More of an interjection, I would think. Some dictionaries consider it an adverb (affirmatively).
e.g. He answered yes when asked if it was his knife.
It can also be used as a noun (a yes) and adjunct (a yes vote).
Yes, it is an adverb. It is the adverb form of the adjective careful.Yes it is.
Yes, "promptly" is an adverb. The -ly is usually a good indication that a word is an adverb.
Yes, it is an adverb. It is the adverb form of the adjective scary.
Yes, exactly is an adverb.
Yes, it is an adverb (in a wise manner).
Yes, yes it is. An adverb is describes how when and where.
Yes, it is an adverb. It is the adverb form of the adjective careful.Yes it is.
Yes, it is an adverb.
Yes, "promptly" is an adverb. The -ly is usually a good indication that a word is an adverb.
Yes, it is an adverb, the adverb form of the adjective respectful.
Yes, it is an adverb. It is the adverb form of the adjective scary.
Yes, popularly is an adverb.
Yes, "humbly" is an adverb.
Yes, really is an adverb.
Yes, it's an adverb.
Yes, "proudly" is an adverb.
Yes, permanently is an adverb.