Cistern (noun)

1. A tank or reservoir for storing water, especially one supplying a building with water.
2. A large container for storing liquids, especially oil or wine.

Origin:

Late middle english: from old french cisterne, from latin cisterna, from greek kistērnē, from kistein 'to store'.

Examples:

1. The village relies on the cistern for drinking water.
2. A leak was discovered in the cistern, causing the water supply to run low.
3. The cistern is used to store rainwater for irrigation.
4. The cistern at the oil storage facility holds millions of gallons of crude oil.
5. In ancient Rome, cisterns were used to store drinking water for public use.