A noun is a word used to identify a person, place, thing, or idea. Nouns are fundamental to
sentence construction and are typically the subject or object of a verb.
## Types of Nouns
1. **Common Nouns**
- Common nouns refer to general items rather than specific ones. They are not capitalized
unless they start a sentence.
- Examples:
– boy
– school
– country
– book
– river
– car
– tree
– phone
– flower
– doctor
2. **Proper Nouns**
- Proper nouns refer to specific names of people, places, or organizations. They are always
capitalized.
- Examples:
– Albert Einstein
– New York
– United Kingdom
– Oxford University
– Friday
– January
– Eiffel Tower
– Toyota
– Mount Everest
3. **Concrete Nouns**
- Concrete nouns are things that can be observed and measured; they have physical
existence.
- Examples:
– apple
– door
– chair
– pen