Admittance
WordNet
noun
(1) The act of admitting someone to enter
"The surgery was performed on his second admission to the clinic"
(2) The right to enter
WiktionaryText
Noun
- The act of admitting.
- Permission to enter; the power or right of entrance.
- Actual entrance; reception.
- The act of giving possession of a copyhold estate.
- The reciprocal of impedance