snorkel
['gar, garfish, garpike, billfish, Lepisosteus osseus', 'breastplate, aegis, egis', 'chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour', 'spiny lobster, langouste, rock lobster, crawfish, crayfish, sea crawfish', 'lens cap, lens cover', 'shower cap', 'French horn, horn']