He is a teacher.
He is sad/angry.
The above are made up sentences.
Are there any tips or rules to differentiate a noun from an adjective?
Why kind of adjectives are sad and angry?

I know the adjectives are describing words and nouns as naming words.

Why can't we say "sad" and "angry" as naming words?

Jigneshbharatidifferentiate a noun from an adjective

A typical noun refers to something in the real world. It can be a person, an object, or a substance. house, car, hotel, water, chair, milk, bottle, teacher, president, liquid, bird, ...

Adjectives don't refer in that way. They typically describe things in the real world. They say what properties people or things have. large, small, weak, strong, happy, sad, open, full, empty, ...

JigneshbharatiWhy can't we say "sad" and "angry" are naming words?

They don't name anything. Where can we find "a sad"? What thing in the real world is "a sad"? Can you find several "sads" in your home? What is "an angry"? What would a box full of "angries" be?

I don't know if you can do this in your native language, but in English there are no "sads" or "angries" in the world — only sad people or angry people.


Thanks and neither in my mother tongue-Hindi and Gujarati.