+19. Classification.+—The eight parts of speech may be classified as follows:—

I. Substantives: nouns, pronouns.
II. Assertives: verbs.
III. Modifiers: adjectives, adverbs.
IV. Connectives: prepositions, conjunctions.
V. Interjections.

+20. Definitions.+—The parts of speech may be defined as follows:—

(1) A noun is a word used as a name.

(2) A pronoun is a word used in place of a noun, designating a person, place, or thing without naming it.

(3) An adjective is a word that modifies a substantive.

(4) A verb is a word that asserts something—action, state, or being—- concerning a substantive.

(5) An adverb is a word that modifies a verb, adjective, or another adverb.

(6) A preposition is a word that shows the relation of the substantive that follows it to some other word or words in the sentence.

(7) A conjunction is a word that connects words or groups of words used in the same way.