"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Common
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
Yes, brinjal is a common noun, a singular, concrete noun, a word for a vegetable, a thing.A proper noun is the name of a person, place, thing, or a title; for example:Brinjal Street, Gulargambone NSW, AustraliaHotel Brinjal, Haridwar, Uttarakhand, India
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Common
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?
The answer is proper noun. Examples of common noun and proper noun are: Proper noun: Mary Collins Common noun: monkey