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Adjectives
An adjective is a word that describes a noun or a pronoun. Adjectives tell what kind, how many, or which one.
Most alligators live in coastal marshes.
(An adjective usually comes before the word it describes.)
Alligators in Louisiana bayous are legendary.
(An adjective may come after a linking verb like is or are.)
Articles
The articles a, an, and the are adjectives.
An alligator is an American reptile.
(An is used before words beginning with a vowel sound.)