The term 'LARGE WAVE' can be broken down into four crossword solutions: ROLLER (6 letters), BREAKER (7 letters), BILLOW (6 letters), and SEA (3 letters). A ROLLER is a large wave that moves along the surface of the ocean, often caused by strong winds. A BREAKER is a large wave that breaks against the shoreline, creating a loud crashing sound. A BILLOW is a large wave that rises up and then falls back down, often seen in rough seas. Finally, the SEA is the body of water in which these large waves occur.