Nouns are sometimes used as verbs, and verbs, as nouns, according to their manner of meaning; and nouns are sometimes used as adjectives, and adjectives, as nouns.  This matter will be explained in the concluding part of this lecture, where you will be better prepared to comprehend it.

NOUNS are of two kinds, common and proper.

A Common noun is the name of a sort or species of things; as, man, tree, river.

A Proper noun is the name of an individual; as, Charles, Ithaca, Ganges.

A noun signifying many, is called a collective noun, or noun of multitude; as, the people, the army.

The distinction between a common and a proper noun, is very obvious.  For example:  boy is a common noun, because it is a name applied to all boys; but Charles is a proper noun, because it is the name of an individual boy.  Although many boys may have the same name, yet you know it is not a common noun, for the name Charles is not given to all boys. Mississippi is a proper noun, because it is the name of an individual river; but river is a common noun, because it is the name of a species of things, and the name river is common to all rivers.

Nouns which denote the genus, species, or variety of beings or things, are always common; as, tree, the genus; oak, ash, chestnut, poplar, different species; and red oak, white oak, black oak, varieties.  The word earth, when it signifies a kind or quantity of dirt, is a common noun; but when it denotes the planet we inhabit, it is a proper noun.  The words person, place, river, mountain, lake, &c. are common nouns, because they are the names of whole species, or classes of things containing many sorts; but the names of persons, places, rivers, mountains, lakes, &c. are proper nouns, because they denote individuals; as, Augustus, Baltimore, Alps, Huron.

Physician, lawyer, merchant, and shoemaker, are common nouns, because these names are common to classes of men. God and Lord, when applied to Jehovah or Jesus Christ, are proper; but when employed to denote heathen or false gods, or temporal lords, they are common.  The Notes and remarks throughout the work, though of minor importance, demand your attentive and careful perusal.

    NOTES.

    1.  When proper nouns have an article annexed to them, they are
    used after the manner of common nouns; as, “Bolivar is styled
    the Washington of South America.”