No, ‘quickly’ is not a verb. It is an adverb.
Adverbs are words that modify verbs, adjectives, or other adverbs, usually indicating manner, time, place, or degree. In this case, ‘quickly’ describes how an action is performed. For example, in the sentence ‘She runs quickly,’ the word ‘quickly’ modifies the verb ‘runs’ and tells us how she runs.
Verbs, on the other hand, are words that express actions, states, or occurrences. While ‘quickly’ adds context to a verb, it does not function as an action word itself. Therefore, it cannot be classified as a verb.