Meaning : Allow participation in or the right to be part of. Permit to exercise the rights, functions, and responsibilities of.
Example :
Admit someone to the profession.
She was admitted to the New Jersey Bar.
Meaning : Allow to enter. Grant entry to.
Example :
We cannot admit non-members into our club building.
This pipe admits air.
Let in ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Let in ka matlab kya hota hai?