bathing cap, swimming cap
['thatch, thatched roof', 'gasmask, respirator, gas helmet', 'seashore, coast, seacoast, sea-coast', 'breakwater, groin, groyne, mole, bulwark, seawall, jetty', 'bow tie, bow-tie, bowtie', 'bobsled, bobsleigh, bob', 'bearskin, busby, shako']