To start with, we have 8 parts pf speech and those are Nouns, Pronouns, Verbs, Adjectives, Adverbs, Conjunction, Preposition, and Interjection.
Noun is the name of person, place, things, animals, and events.
For example: cat, chair, president
In a sentence: Honorable Ferdinand E. Marcos Jr. is the current president of the Philippines.