noun admissibility.
2. admittance ·noun the act of admitting.
3. admittance ·add. ·noun the reciprocal of impedance.
4. admittance ·noun the act of giving possession of a copyhold estate.
5. admittance ·noun permission to enter; the power or right of entrance; also, actual entrance; reception.
6. admittance ·noun concession; admission; allowance; as, the admittance of an argument.