I have learned the eight parts of speech such as the nouns, pronouns, adjectives, verbs, adverbs, prepositions, conjunctions, and interjections. In simplest definition of the said parts, please refer to the key points below.
Nouns - name of person, place, thing, or idea
Pronouns - it takes the place of noun
Adjectives - it describes the noun or pronoun
Verbs - an action word
Adverbs - describe the verbs
Prepositions - words that shows the relationship between place, time, location, and direction
Conjunctions - connect words, phrases, or clauses
Interjections - tell emotions or feelings