開扉[kaihi] opening a door
防火扉[boukatobira] fire door
門扉[monpi] door(s) of a gate
防水扉[bousuihi] watertight door
鉄扉[teppi] iron door

扉絵[tobirae] frontispiece
裏扉[uratobira] back leaf
自動扉[jidoutobira] automatic door
回転扉[kaitentobira] revolving door