Adjectives describe or modify nouns (words that name people, places, things, or ideas) and pronouns (words that replace nouns). They add information about what kind, which one, or how many.

Adverbs describe or modify verbs (words that tell what happens in a sentence), adjectives, or other adverbs. They add information about how, how much, when, where, why, or to what extent.

Adjectives usually come before the words they modify; adverbs come before or after. You can use more than one adjective or adverb to modify a word.