Proper noun
The noun 'aeroplane' (or airplane) is a common noun, a general word for any a powered flying vehicle with fixed wings; a word for any aeroplane of any kind.A proper noun is the name of a specific person, place, or thing. Examples of proper nouns for the common noun 'aeroplane' are a Boeing 737 or an Airbus A380.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
It's Proper noun
common noun.
Common
Camel is a common noun.
is rout a common noun or a proper noun
Common
proper
It is a proper noun, because it is the name of a specific thing.
Common