A noun is a word used as a name.
It tells about what you are talking about.
Everything around us including me and you have a name. There are names for persons, places, things, animals, qualities, actions, and measures of time or quantity.
A noun is a word that names something.
Examples:
- Persons: student-friend-Neol-Phil-Englishman
- Animals: cat-dog-rat-rabbit-lion
- Places: England-home-office-hotel-camp
- Things: laptop-purse-table-pen-book
- Substances: wood-air-food-water-diamond
- Qualities: honesty-kindness-beauty-cleanliness-simplicity
- Actions: reading-singing-playing-cooking-climbing
- Measures: year-pound-second-inch-month
- Diamond is an expensive metal. (Diamond is the name of a metal. Metal is the name of a substance)
- The student is wearing his new uniform. (Student is the name given to the person who goes to school. Uniform is the name given to the clothes a student wears.)
- Mango grows in India. (Mango is the name of a fruit. India is the name of a country located in Asia)
- Honesty is the best policy. (Honesty is the name given to a quality. Policy is the guiding principle) Note: Honesty is not an adjective here.
- Swimming is a good exercise. (Swimming is the name of an action considered as an exercise. Exercise is name of an activity that requires physical exertion) Note: Swimming is not a verb here
Noun is a word used as a name of a person, place, thing, idea, or action.