Adverb Definition & Meaning - Merriam-Webster
https://www.merriam-webster.com/dictionary/adverb: a word belonging to one of the major form classes in any of numerous languages, typically serving as a modifier of a verb, an adjective, another adverb, a preposition, a phrase, a clause, or a sentence, expressing some relation of manner or quality, place, time, degree, number, cause, opposition, affirmation, or denial, and in english also …
Adverb - Wikipedia
https://en.wikipedia.org/wiki/AdverbAn adverb is a word or an expression that modifies a verb, adjective, another adverb, determiner, clause, preposition, or sentence. Adverbs typically express manner, place, time, frequency, degree, level of certainty, etc., answering questions such as how?, in what way?, when?, where?, and to what extent?. This is called the adverbial function, and may be performed by single words (adverbs) or by multi-word adverbial phrases and adverbial clauses.
Adverbs - Grammar Monster
https://www.grammar-monster.com/lessons/adverbs.htmWhat is an adverb? An adverb is a word that can modify a verb, an adjective, or another adverb. Lots of adverbs end "-ly." For example: She swims quickly. (Here, the adverb "quickly" modifies the verb "swims.") She is an extremely quick swimmer. (The adverb "extremely" modifies the adjective "quick.") She swims extremely quickly.