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tube
tube
synonyms
duct
pipe
channel
conduit
passage
subway
canal
metro
underground
pipeline
thermionic tube
gutter
thermionic valve
electron tube
thermionic vacuum tube
trough
vacuum tube
sewer
line
main
subway system
shaft
drain
culvert
furrow
course
tubing
funnel
watercourse
trench
flue
vessel
vent
gully
underground railway
artery
sluice
cut
boob tube
inlet
telly
flume
aqueduct
ditch
groove
race
tube-shaped structure
tunnel
vas
vid
more synonyms
tube
antonyms
outlet