(n.) a wall built to stop waves from eroding a shore
sea wall
(adj.) full of action or movement
active
(adj.) having a sharp angle or slope
steep
(adj.) firm or hard; not liquid or gas
solid
(n.) the slow destruction of something by wind or water
erosion
(v.) to hit very hard
smash
(v.) to burst or break open violently
explode
(n.) the land along the edge of a body of water
shore
(n.) things or people arranged in a straight line
row
(n.) ground that slants up or down
slope
(n.) someone or something that makes something else happen
cause
(n.) a very large rock
boulder