Ocean froth is a term used to describe the foam created by the action of waves on the shoreline. It is composed of bubbles of air, water, and organic matter. The two crossword solutions for this term are SPUME (5 letters) and seafoam (7 letters). SPUME is a type of froth or foam that forms on the surface of the ocean, while seafoam is a type of SPUME that is created by the action of waves on the shoreline. Both terms refer to the same phenomenon, but seafoam is more specific in its description.