Truck is a common noun. Proper nouns are the unique names of people, places, or things. Common nouns are the words for general things. If a common noun is part of a name, it becomes a proper noun. Pronouns always replace proper and common nouns.
The noun truck is a common noun, a general word for any truck of any kind.A proper noun is the name or title of a specific person, place, or thing; for example:Ford F-150 or Toyota TacomaNorth Truck Street, Kimball, SD or Truck Road, Butte Falls, ORGreen Truck Pub (restaurant), Savannah, GA
"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
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?
The answer is proper noun. Examples of common noun and proper noun are: Proper noun: Mary Collins Common noun: monkey