Adverbs are words that modify verbs, adjectives, other adverbs, or entire sentences, providing additional information about how, when, where, to what extent, or under what conditions something happens. They often end in “-ly,” although not always, and answer questions like “how?” (quickly, slowly), “when?” (yesterday, soon), “where?” (here, everywhere), and “to what extent?” (very, quite). For example, in the sentence “She sings beautifully,” the adverb “beautifully” modifies the verb “sings” by describing how she sings. Adverbs enhance the meaning and clarity of a sentence, offering more detail and precision about the actions or qualities they describe.