Esperanto

Noun

subterfervojo ‎(accusative singular subterfervojon, plural subterfervojoj, accusative plural subterfervojojn)

1. (uncommon) underground railway, underground, subway

Synonyms

• subvojo, subtervojo

Hypernyms

• metroo, metropoliteno ‎(“metro”)

Usage notes

The term metroo is a much more common term for an urban train system, above‐ or belowground.