Common noun

Definition and stakes

Portrait of Goold Brown Goold Brown,  The Grammar of English Grammars

“ I. A proper noun is the name of some particular individual, or people, or group; as, Adam, Boston, the Hudson, the Romans, the Azores, the Alps.
II. A common noun is the name of a sort, kind, or class, of beings or things; as, Beast, bird, fish, insect,—creatures, persons, children.
The particular classes, collective, abstract, and verbal, or participial, are usually included among common nouns. The name of a thing sui generis is also called common.
1. A collective noun, or noun of multitude, is the name of many individuals together
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Source: Gutenberg

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