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Related Terms:
catacomb
barrier
rabbit warren
geoengineering
catheter
protocol
horsehead
make
microfluidics
channel tunnel
tunneller
near death experience
underpass
insecure
photofield
shoring
nontunnelled
brownout
tunnelway
headroom
polyhouse
softwire
tunnelball
tunnelable
cut and cover
arrastão
level
pipejacking
through
mouseholing
loading gauge
tunnellike
burrow
tunnel vision
wind tunnel
air shaft
tunnel net
vein
tunnel head
unsupported
tunneler
passage
ground
countermine
chimney
mudgut
road
wrapper
midfeather
funnel
nontunneled
subway
polytunnel
euendolith
tunneling
rapid transit
alar canal
fluffer
sandhog
tunnel stern
under
obstacle
hole
particle
sett
clearance
underway
crut
breakthrough
tunneled
blocked
tunnels
draining
gangway
animal
light at end of tunnel
flue
quantum mechanical
drift
nanotunnel
rootworm
crawlway
tunnelly
underwater
gauge
tunnel kiln
microtunnel
sidetrack
underground
queens
mountain
long
cave
cavern
dark
dark long
under ground
long cave
underground passage
canal
chute
transportation
way
arch
underground road
mountain road
Definitions:
Noun
tunnel
Definition: a passageway through or under something, usually underground (especially one for trains or cars); "the tunnel reduced congestion at that intersection"
Definition: An underground or underwater passage.