Riptide and Undertow

Riptide noun - A stretch of turbulent water in a river or the sea caused by one current flowing into or across another current.

Undertow and riptide are semantically related in drift topic. In some cases you can use "Undertow" instead a noun "Riptide".

Undertow noun - The seaward undercurrent created after waves have broken on the shore.

Riptide and undertow are semantically related in pull of tide topic. You can use "Riptide" instead a noun "Undertow". popular alternative