This document defines adverbs and discusses their usage. Adverbs describe verbs, adjectives, or other adverbs. They are typically placed after verbs or before adjectives and other adverbs. Some common adverb forms are created by adding -ly to adjectives. However, there are exceptions where adjectives and adverbs are the same word. The document also provides examples of how to correctly use adverbs and identifies exceptions like "hardly" and "lately" that do not follow typical rules.