Basin and Cistern

Basin noun - A bowl-shaped vessel; usually used for holding food or liquids.

Cistern is a synonym for basin in water topic. In some cases you can use "Cistern" instead a noun "Basin", when it comes to topics like reservoir, pool.

Cistern noun - A sac or cavity containing fluid especially lymph or cerebrospinal fluid.

Basin is a synonym for cistern in water topic. You can use "Basin" instead a noun "Cistern", if it concerns topics such as reservoir, pool, tank.