As a name of a road , Park Avenue', it is a proper noun, and both words star with a capital letter. However, when used separately, as 'the park, or 'the avenue', they are common nouns and so not need a capital letter.
It is a proper noun, because it is the name of a specific thing.
Proper noun
proper
it's a common noun. a proper noun would be Spider-Man.
automobile is a common noun.
automobile is a common noun.
The word automobile is a common noun. Common nouns are words for any person, place, thing, or idea. A proper noun is the name for a specific person, place, thing, or a title, such as American Automobile Club (AAA), automobile names like Ford, Cadillac, etc. or 'The Automobile Song' by Benny Bell. Proper nouns are always capitalized.
The noun 'jaguar' (lower case j) is a common noun, a general word for a type of cat. The noun 'Jaguar' (capital J) is a proper noun, the name of a specific brand of automobile.
The noun automobile is a singular, common, concrete noun.
As a name of a road , Park Avenue', it is a proper noun, and both words star with a capital letter. However, when used separately, as 'the park, or 'the avenue', they are common nouns and so not need a capital letter.
It is a proper noun, because it is the name of a specific thing.
Proper noun
proper
it's a common noun. a proper noun would be Spider-Man.
Pencil proper or common noun
The noun cassette is a common noun.