A noun is a part of speech that denotes a person, animal, place, thing, or idea. 

Person – A term for a person, whether proper name, gender, title, or class, is a noun.

Animal – A term for an animal, whether proper name, species, gender, or class is a noun.

Place – A term for a place, whether proper name, physical location, or general locale is a noun.

Thing – A term for a thing, whether it exists now, will exist, or existed in the past is a noun.

Idea – A term for an idea, be it a real, workable idea or a fantasy that might never come to fruition is a noun.

i hope it helps................

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