Discerning VS Special

samerrustom Could you inform me what is the difference is between the above two adjectives?

Look them up here:
www.onelook.com

They have similar meaning on Oxford dictionary.

Can you give us example sentences in which the usage of these two words confuses you?

Could I say "My boss is a special person"?

Could I say "The professor at MIT university is a discerning one"?

samerrustomCould I say "My boss is a special person"?

Yes, you could. That's a natural and clear sentence.

samerrustomCould I say "The professor at MIT university is a discerning one"?

That's not natural.

"Discerning" is used mostly to indicate having good judgement, e.g. about buying/appreciating something.

Can I say "I usually go to XYZ restaurant when I visit my grandma, it is a discerning one"?

No, "discerning" is usually used to describe a person or a personal quality.

e.g.
discerning customer
discerning client
discerning eye
discerning judgement
discerning taste
discerning palate
discerning gentleman

Thank you so much.
Can I say "Miss.Sarah have discerning eyes"?
Can I say "Chinese restaurant in NYC has a discerning taste"
Can I say "My general manager is a discerning gentlemen"?

samerrustomCan I say "Miss Sarah have has discerning eyes?"

Yes.

samerrustomCan I say "Chinese restaurant in NYC has a discerning taste"

No. Read my previous post.

samerrustomCan I say "My general manager is a discerning gentlemen?"

Yes.