A noun is a Word for a person, a place, or a thing.
A common noun is a general Word for a person, place, or thing.
A proper noun is the name or title of a specific person, place, or thing,
A pronoun is a Word that takes the place of a noun in a sentence.
Examples:
My sister made the pie. She is a good cook.
- the noun 'sister' is a common noun, Word for a person;
- the noun 'pie' is a common noun, a Word for a thing;
- the noun 'cook' is a common noun, a Word for a person;
- the pronoun 'she' takes the place of the noun 'sister' as the subject of the second sentence.
Chicago is not the capital but it is the largest city in Illinois.
- the noun 'Chicago' is a proper noun, the name of a specific place;
- the noun 'capital' is a common noun, a Word for a thing;
- the noun 'city' is a common noun, a Word for a place;
- the noun 'Illinois' is a proper noun, the name of a specific place;
- the pronoun 'it' takes the place of the noun 'Chicago' in the second part of the compound sentence.