Answer:
a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree
Explanation:
An adverb is a word that describes an action
For example, if you said
The man ran fast.
Fast is the adverb because it's describing how her ran. Ran is the action. The word fast describes how the action is done.
