breakwater, groin, groyne, mole, bulwark, seawall, jetty
['loudspeaker, speaker, speaker unit, loudspeaker system, speaker system', 'killer whale, killer, orca, grampus, sea wolf, Orcinus orca', 'coho, cohoe, coho salmon, blue jack, silver salmon, Oncorhynchus kisutch', 'bathtub, bathing tub, bath, tub', 'laptop, laptop computer', 'web site, website, internet site, site', 'lifeboat']