Part of speech is groups of words based on their function in a sentence.
1 Noun – Names a person, place, thing, or idea.
boy, school, book
2 Pronoun – Replaces a noun.
he, she, they
3 Verb – Shows action or state.
run, eat, is
4 Adjective – Describes a noun.
big, tall, smart
5 Adverb – Describes a verb, adjective, or adverb.
quickly, very
6. Preposition – Shows position or relationship.
in, on, under
7. Conjunction – Joins words or sentences.
and, but, because
8. Interjection – Shows emotion.
Oh! Wow!