Definitions from Wiktionary (subtunnel)
▸ noun: A tunnel forming part of a larger tunnel or tunnel system.
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▸ noun: A tunnel forming part of a larger tunnel or tunnel system.
Similar:
subsewer,
submaze,
subweb,
subnetwork,
submachine,
subbasement,
subdepository,
subcrossing,
subtunic,
subsubdomain,
more...
Opposite:
▸ Words similar to subtunnel
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▸ Wikipedia articles (New!)
▸ Popular adjectives describing subtunnel
▸ Words that often appear near subtunnel
▸ Rhymes of subtunnel
▸ Invented words related to subtunnel