common noun
US /ˈkɑː.mən naʊn/
UK /ˈkɑː.mən naʊn/

1.
a noun referring to a class of people, places, or things, rather than to a specific individual (e.g., 'dog', 'city', 'happiness')
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In the sentence 'The dog barked loudly,' 'dog' is a common noun.
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Unlike proper nouns, common nouns are not capitalized unless they begin a sentence.