"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
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.
The noun 'sunflower' is a common noun, a general word for a type of flower.A proper noun is the name of a specific person, place, or thing; for example,Sunflower Bank in Pueblo Colorado or Sunflower Brand Basmati Rice.
A sunflower is a thing, a plant that grows from the ground. The common noun sunflower can be used for a place, a proper noun; for example:Sunflower Avenue in Paramus NJSunflower Mississippi (pop. 696)The Sunflower Stop (inn), Cape Town, South Africa
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
Pencil proper or common noun
it's a common noun. a proper noun would be Spider-Man.
Proper noun or common noun
The noun cassette is a common noun.
a common noun?
Camel is a common noun.