What type of word is "quickly" in the sentence "He spoke quickly during the presentation"?

The word "quickly" in the sentence functions as an adverb. Adverbs typically modify verbs, adjectives, or other adverbs, providing additional context such as how, when, where, or to what extent an action occurs. In this case, "quickly" modifies the verb "spoke," indicating the manner in which he spoke during the presentation.

This distinction is important because understanding adverbs helps clarify the action's quality. Adjectives, in contrast, would modify nouns, and a noun represents a person, place, thing, or idea, while a conjunction serves to connect clauses or sentences. Hence, identifying "quickly" as an adverb enhances comprehension of the sentence's action and emphasizes the swiftness of the speaking.