Tank

Tank (Vehicle)
A tank was a controllable piece of machinery mostly used in wars and as defenses. Tanks almost always had thick armor to defend against weaker blaster fire and missiles, but many were vulnerable to larger threats such as plasma cannons and lightsabers, with some (quite expensive) tanks even being surrounded by ray shields to protect them from such a threat.

Tank (Storage)
Storage units, commonly for effectively storing fluids, were also known as tanks in many Universal Basic speaking systems. Most tanks contained water, fuel, or other essential liquids. Tanks containing solids or other states of matter were also uncommonly seen.