proper noun

proper noun (egennavn, proprium): a class of nouns. Proper nouns are names of people, places, companies, organizations, etc. A proper noun typically refers uniquely to one referent. Proper nouns are spelled with capital initials. In contrast to common nouns, they do not vary between singular and plural, and they do not occur with determiners and modifiers(unless these are part of the name, as in The United States of America, in which case they cannot be omitted or replaced by other determiners or modifiers).