"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Spanish is a proper noun, a word for the language of Spain or the people of Spain; the name of a specific language or specific people. A proper noun is always capitalized.The word 'Spanish' is also a proper adjective, a word that describes a noun as of or from Spain. A proper adjective is always capitalized.
The noun 'Madrid' is a singular, concrete, proper noun; the name of a specific place.
Yes, Madrid is a proper noun, the name of a specific place. It's the capital of Spain.
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
it's a common noun. a proper noun would be Spider-Man.
Pencil proper or common noun
Proper noun or common noun
The noun cassette is a common noun.
a common noun?