What is common noun? The common noun- A common noun is the name given that is common to people, places, things and animals etc. Common nouns do not belong to any particular person, place or thing. They are common names. Common Noun is always write in the lowercase. Only make it capitalize when a sentence starts or appears in a title. Such as- man, woman, doctor, town etc. Example sentences- I love to read English books. Her mother is a teacher. Keep the bottle in the fridge. | English Learning