hippopotamus, hippo, river horse, Hippopotamus amphibius
['promontory, headland, head, foreland', 'ear, spike, capitulum', 'tank, army tank, armored combat vehicle, armoured combat vehicle', 'wallaby, brush kangaroo', 'gar, garfish, garpike, billfish, Lepisosteus osseus', 'ibex, Capra ibex', 'tiger shark, Galeocerdo cuvieri']