tunnel
a tunnel extending a great distance
a tunnel beneath the surface of the ground
a tunnel with no light
a tunnel known only to a few people
a tunnel that is not wide
a tunnel built for escaping
a tunnel for road traffic
a tunnel that is concealed from view
a tunnel that has many curves and turns
a tunnel for an underground electric railway
a tunnel of a small length
a tunnel for trains
a tunnel for trains
a tunnel for trains
a tunnel that links two places
a tunnel for an underground railway system
a tunnel for maintenance or utility lines
a tunnel with a large width
a tunnel used for entry
a tunnel-like apparatus for producing an airstream of known velocity past models of aircraft, etc.
an underground conduit for carrying off drainage water and waste matter
a tunnel existing or situated under the earth's surface
an interconnected system of tunnels
a set of connected tunnels forming a complex whole
a number of tunnels one after another
a complex network of paths or passages; a labyrinth of tunnels
a confusing and complicated network of tunnels
moving in one side and out the other side of a tunnel
to pass from one end of the tunnel to the other
to make a tunnel by removing earth
to go into a tunnel
to move into a tunnel
to emerge from a tunnel
to go into a tunnel and be lost from sight
to construct a tunnel
to employ the tunnel as a route
to build or erect a tunnel
to exit a tunnel
to create a tunnel
to produce a tunnel by making a hole with a tool
to make a tunnel by drilling a deep hole
to make a tunnel by digging
the point where the tunnel begins
the opening or entrance of the tunnel
a network of interconnected tunnels
the side surface of the tunnel's interior
the top surface of the tunnel's interior
the bottom surface of the tunnel
the tunnel provides a route to a particular place
the tunnel extends or stretches in a specified direction
the tunnel joins two or more places
the tunnel becomes wider or leads to a more open area
the tunnel becomes wider or leads to a more open area