admittance admittance /ədˈmɪtəns/

noun

1. The act of admitting someone to enter  ( admittance , admission )
   the act of admitting someone to enter
    The surgery was performed on his second admission to the clinic
   the surgery was performed on his second admission to the clinic
   
2. The right to enter  ( accession , admission , admittance , access , entree )
   the right to enter