ADMITTANCE Meaning of ADMITTANCE in English ad ‧ mit ‧ tance /ədˈmɪt ə ns/ BrE AmE noun [uncountable] formal permission to enter a place ⇨ admission :Gaining admittance to the club was no easy matter. Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012