The noun is the basic building block of a sentence, and it is a word that names people, animals, places, things, a quality, or ideas. Nouns are the principal class of words in most languages, and there are common nouns and proper nouns. The common noun denotes a person, place, or thing while the proper noun which names the same, but with a capital like Joseph, and the United States are proper nouns and man, or animal would be common nouns. There are collective nouns that name a group of things like a flock of geese.
The adjective describes or modifies nouns and pronouns like the red apple, and the angry man. Adjectives answer specific questions like which one, what kind, how many, and whose. There are adjectives known as articles, which are The, A, and An, and there are proper adjectives that start with a capital letter like Mexican food or English grammar. There are comparative adjectives like Sally is taller than Samantha and Superlative like out of Sally, Samantha, and Marie, Sally is the tallest.