A cisterna.
The vessel surrounding the condenser in a steam engine.
In a flush toilet, the container in which the water used for flushing is held; a toilet tank.
A reservoir or tank for holding water, especially for catching and holding rainwater for later use.
An egg squash.
A natural or artificial egg placed in a bird's nest, to encourage the bird to lay its own eggs there.
A saving; a reserve of money.