Flow back is a term used to describe the movement of water or other liquids in the opposite direction of their original flow. The crossword solutions for this term are EBB (3 letters), RECEDE (6 letters), and WANE (4 letters). EBB is defined as the outward flow of the tide, while RECEDE means to move back or withdraw. WANE is defined as to gradually decrease in size, strength, or intensity. All three words can be used to describe the concept of flow back.