breakwater, groin, groyne, mole, bulwark, seawall, jetty
['wing', 'sunscreen, sunblock, sun blocker', 'warplane, military plane', 'freight car', 'leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea', 'bow', 'gar, garfish, garpike, billfish, Lepisosteus osseus']