Common noun and Proper noun

Opposite meaning terms

Common noun noun - A noun that denotes any or all members of a class.

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Proper noun is an antonym for common noun.

Proper noun noun - A noun that denotes a particular thing; usually capitalized.

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Common noun is an antonym for proper noun.

This is because capital letters are one of a few common methods of indicating that a word being used is supposed to be a proper noun referring to a specific thing, rather than a common noun referring to a class of things.

Source: Capital Letters Are Magic

Cite this Source

Proper noun and Common noun. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/common_noun/proper_noun

Common noun & Proper noun. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/common_noun/proper_noun>.

Proper noun or Common noun. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/common_noun/proper_noun.

Google Ngram Viewer shows how "common noun" and "proper noun" have occurred on timeline