conduit (n.)
- access
- adit
- aisle
- alley
- ambulatory
- aperture
- aqueduct
- arcade
- artery
- avenue
- canal
- channel
- cloister
- colonnade
- communication
- connection
- corridor
- course
- defile
- ditch
- duct
- egress
- entrance
- exit
- ferry
- ford
- gallery
- ingress
- inlet
- interchange
- intersection
- junction
- lane
- opening
- outlet
- overpass
- pass
- passage
- passageway
- portico
- trench
- trough
- tunnel
- underpass
- watercourse
- way