1. Special underground work, production of subterraneous curtains and concrete pile walls in soil

2. The place the Beanes inhabited stretched nearly a mile underground, and when the tide came in, the water went into their subterraneous hideout nearly 200 yards.

3. They purchase from the subterraneous coiners 36 shillings'-worth of copper (in nominal value) for 20 shillings, so that the profit derived from the cheating is very large.