dam, dike, dyke
['slide rule, slipstick', 'pineapple, ananas', 'hourglass', 'Komodo dragon, Komodo lizard, dragon lizard, giant lizard, Varanus komodoensis', 'American egret, great white heron, Egretta albus', 'bannister, banister, balustrade, balusters, handrail', 'radiator']