A proper noun is a specific (i.e., not generic) name for a particular person, place, or thing. Proper nouns are always capitalized in English, no matter where they fall in a sentence. ... A common noun is the generic name for one item in a class or group.
common noun:A common noun is the generic name for a person, place, or thing in a class or group. Unlike proper nouns, a common noun is not capitalized unless it either begins a sentence or appears in a title. ... All nouns name something, but proper nouns name them specifically.
