In the class i learned about noun, pronoun, verb, adjective, adverb, preposition, conjuction and interjection.
Example:
Noun: flamingo, girl
Pronoun: he, she
Verb: swim, expensive
Adjective: happy, friendly
Adverb: very* happy, Come here
Preposition: She is next to me, with
Conjunction: and, but
Interjection: Woohoo!