noun

A noun is a word that represents a person, place, thing, or idea. It is one of the basic parts of speech in English grammar. Nouns can be concrete, which means they refer to something that can be perceived by the senses, or abstract, which refers to something that cannot be perceived by the senses.

Examples of concrete nouns include:

- Person: teacher, doctor, student
- Place: park, school, city
- Thing: car, book, table

Examples of abstract nouns include:
- Idea: love, happiness, courage
- Quality: honesty, loyalty, kindness
- State: freedom, peace, democracy