also: ずいどう · ついどう
Literary or technical term for 'tunnel'; in modern Japanese, トンネル is overwhelmingly more common. 隧道 may appear in historical contexts, engineering documents, or proper names.
See also: トンネル
This old tunnel is no longer in use.
The word 隧道 is an old way of saying 'tunnel'.
Literary or technical kanji spelling for 'tunnel'; rarely used in modern Japanese, where トンネル is standard.
Alternate reading of 隧道; even less common than すいどう.
Alternate reading of 隧道; very rare.
Kanji compound: 隧 (passage, underground) + 道 (road, way). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning 'tunnel'.