u. (tt) 1 (often foil. by to be, or that + clause) acknowledge; recognize as true. 2 (foil. by to) confess to (a deed, fault, etc.). 3 allow (a person) entrance, access, etc. 4 take (a patient) into hospital. 5 (of an enclosed space) accommodate. 6 (foil. by of) allow as possible. [Latin mitto miss send] admittance n. admitting or being admitted, usu. to a place.