Noun - A person, place, thing, quality, or act.

Verb - Action or existence words that tell what nouns do.

Adjective - Describes a noun.

Adverb - Describes a verb, adjective, or adverb.

Interjection - An outery or sudden utterance.

Proposition - Describes the relationship between a noun and another noun (or verb or adverb).

Conjunction - Joins together words, phrases, or clauses.

Pronoun - Replaces a noun or noun phrase that is understoon from context.