Substantial tunnels Synonyms

Substantial replaced

large tunnels

massive tunnels

actual tunnels

visible tunnels

Definitions for Substantial

(adjective) having great meaning or lasting effect
(adjective) of a size greater than average of its kind
(adjective) relating to or composed of matter

Synonyms for phrase

large labyrinth

ST abbreviation

ST is an abbreviation for Substantial Tunnels

What does ST stand for?

ST stands for "Substantial Tunnels"