A common noun is a noun referring to a person, place or thing. You should not write it with an initial capital letter unless it is the first word of a sentence. A common noun is the opposite of a proper noun.
Examples of common nouns: cat, couch, man, car, glass, water, floor.
Examples of how to use common nouns:
- The cat is sleeping on a couch.
- A man is driving a car.
- A glass of water fell on the floor.