Body of water and Water reservoir

Body of water noun - The part of the earth's surface covered with water (such as a river or lake or ocean).

Water reservoir and body of water are semantically related in reservoir topic. In some cases you can use "Water reservoir" instead a noun phrase "Body of water", when it comes to topics like pool, water tank.

Body of water and water reservoir are semantically related in reservoir topic. You can use "Body of water" instead a noun "Water reservoir", if it concerns topics such as pool, water tank.