A noun is a person, a place, a thing, or an idea.
Examples of nouns: dog, John, Europe, racism.
A pronoun takes the place of a noun.
Examples of pronouns: it, she, he, they.
A verb is an action; something somebody does.
Example: He runs.
"runs" is what "he" does, so the verb in this sentence is "runs."
An adjective describes a noun.
Examples: A red dress.
The word "red" describes the dress; therefore, it is an adjective.
Words like "a," "an," "some," "the," and "several" are also adjectives, but most people forget that.
An adverb describes a verb.
Examples: He closed the door quickly.
"quickly" describes HOW he closed the door; therefore, it is an adverb.
Adverbs describe how something is done, when, and where.
Many adverbs end in "-ly" like loudly, quietly, quickly, and so on.
Hope this helped,
Marianat