The term 'KEEPS AFLOAT' can be solved by the crossword solutions BUOYS (5 letters), SWIMS (5 letters), and TREADSWATER (11 letters). BUOYS are objects that float on the surface of the water and are used to mark a location, such as a harbor or a channel. Swimming is an activity that involves propelling oneself through the water using one's arms and legs. Treading water is a technique used to stay afloat in the water without the use of any equipment.