A common noun is a word for any person, place, or thing.
A proper noun is the name of a person, place, thing, or a title.
common noun -> proper noun
actor -> Dustin Hoffman
boy -> Tom Sawyer
country -> Italy
doughnut -> Dunkin' Donuts
education -> Wake County (NC) Board of Education
flower -> Flower Street, Glendale, CA
girl -> Hannah Montana
house -> Ten Downing Street, home of Britain's Prime Minister
ice -> Jimmie's Ice House, Houston, TX
jacket -> Red Jacket Trail, Mankato, MN
knee -> 'Bury My Heart At Wounded Knee' 2007 HBO
letter -> 'The Scarlet Letter' by Nathaniel Hawthorne
month -> June
nickel -> Thrifty Nickel Want Ad (newspaper), Lubbock, TX
ocean -> Pacific Ocean
person -> Nelson Mandela
queen -> 'The African Queen' (1951), Humphrey Bogart and Katherine Hepburn
root beer -> Hire's Root Beer
spam -> Spam, registered trademark of Hormel Foods
truth -> Sojourner Truth, abolitionist and women's rights advocate
uncle -> 'Uncle Buck' (1989), John Candy
vault -> International Wine Vault, Allston, MA
wall -> The Great Wall of China
yellow -> Yellowstone National Park
zebra -> Mountain Zebra National Park, South Africa
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
readbook
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.
You is a pronoun. Proper nouns are the unique names of people, places, or things. Common nouns are words for general things. Pronouns replace proper and common nouns.