Millpond and Tarn

Millpond noun - A pond formed by damming a stream to provide a head of water to turn a mill wheel.

Tarn and millpond are semantically related in collection of liquid topic. In some cases you can use "Tarn" instead a noun "Millpond", when it comes to topics like inland body of water.

Tarn noun - A mountain lake (especially one formed by glaciers).

Millpond and tarn are semantically related in collection of liquid topic. You can use "Millpond" instead a noun "Tarn", if it concerns topics such as inland body of water.