Meaning : An important influential person.
Example :
He thinks he's a big shot.
She's a big deal in local politics.
The Qaeda commander is a very big fish.
Synonyms : big cheese, big enchilada, big fish, big gun, big shot, big wheel, head honcho
Meaning : Anything of great importance or consequence.
Big deal ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Big deal ka matlab kya hota hai?