Body of water and Polynya

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

Polynya and body of water are semantically related. In some cases you can replace term "Polynya" with "Body of water", this terms are similar.

Polynya noun - A stretch of open water surrounded by ice (especially in Arctic seas).

Body of water and polynya are semantically related. You can use "Body of water" instead a noun "Polynya".