Which noun does the bold adjective describe? Smiling and proud at the podium, John Diggle accepted the award for his invention.

Answer: The bold adjective in the sentence is "proud," and it describes the noun "John Diggle." The adjective "proud" is giving us more information about the emotional state of John Diggle as he accepts the award.

Extra: Adjectives are words that describe or modify nouns or pronouns by giving some information about an object's size, shape, age, color, origin, or material. It's like painting a picture with words. For example, in the sentence "The red apple is sweet," the adjective "red" describes the noun "apple" by indicating its color. When using adjectives in a sentence, they typically come before the noun they describe, as seen in the sentence you provided. Sometimes, adjectives can also come after the verb to be (am, is, are, was, were) or other linking verbs, like in the sentence "John Diggle is proud." Adverbs, on the other hand, are words that modify verbs, adjectives, or other adverbs, often ending in -ly, such as "quickly" or "happily." They describe how, when, where, or to what extent an action is performed, but they do not describe nouns.