A noun is a person, place, thing or idea. Nouns can be concrete or abstract. A concrete noun is a noun you can detect with your senses. An abstract noun is an intangible thing like feelings, ideas, and qualities.
A verb is a word that shows action.
An adjective tells us about a noun. We call adjectives describing words. They can tell us the size, how it feels, what color it is, how many, how it sounds, how it acts, or how it looks.
An adverb modifies a verb, an adjective, and sometimes even other adverbs. Adverbs tell us when, where, in what way, and to what extent. An adverb DOES NOT always end in -ly.
A pronoun takes the place of a noun. We use pronouns in our writing so that we do not sound repetitive.