Identify the adjective in the sentence: "The tall building stood out."

In the sentence "The tall building stood out," the word "tall" functions as an adjective because it describes the noun "building." Adjectives are words that provide more information about nouns, helping to convey qualities, quantities, or characteristics. In this case, "tall" specifies the height of the building, giving the reader a clearer picture of what kind of building it is. The presence of the article "the" before "tall" and "building" further emphasizes that "tall" is modifying "building," which is the noun it describes.