French door
apse
arcade
arcature
arch
arched roof
back door
barway
bulkhead
camber
carriage entrance
ceilinged roof
cellar door
cellarway
concameration
concha
cove
cupola
dome
door
doorjamb
doorpost
doorway
front door
gate
gatepost
gateway
geodesic dome
hatch
hatchway
igloo
keystone
lintel
ogive
porch
portal
porte cochere
postern
propylaeum
pylon
scuttle
side door
skewback
span
stile
storm door
threshold
tollgate
trap
trap door
entrance
entranceway
entry
entryway
entrée
aisle
alcove
balcony
balustrade
courtyard
edifice
façade
foyer
hallway
passageway
portico
rampart
spire
staircase
stairwell
vestibule