The term SEA SIGHT is composed of four crossword solutions: WAVES (5 letters), ERN (3 letters), ERNE (4 letters), and SAIL (4 letters). WAVES refers to the undulating motion of water, which is a common sight at sea. ERN is a type of seabird, while ERNE is another name for the same bird. Finally, SAIL is a type of boat, which is often seen on the ocean. Together, these four words represent the sights one might encounter when looking out to sea.