Answer: CAISSON
The answer CAISSON has 19 possible clues. See the results below.
Possible Clues:
- Airtight underwater chamber
- Watertight chamber in America is so narrow
- Coffer
- Water-excluding case
- Vehicle in an infantry song
- Ammunition container
- The accountant's the second generation to be working there underwater
- Ammunition carrier on wheels
- Artillery wagon
- Architect enclosing one watertight chamber