s/n4182514

Information
has gloss	(noun) a long vertical passage sunk into the earth, as for a mine or tunnel shaft
lexicalization	eng: shaft
subclass of	(noun) a way through or along which someone or something may pass passage
has subclass	(noun) a shaft for ventilation air shaft, air well
has subclass	(noun) a ventilation shaft through which air enters a mine downcast

Links
part of	(noun) excavation in the earth from which ores and minerals are extracted mine
part of	(noun) a passageway through or under something, usually underground (especially one for trains or cars); "the tunnel reduced congestion at that intersection" tunnel