THESAURUS
salt water
agua, aqua, big drink, blue water, drink, drinking water, eau, ground water, hard water, head, heavy water, high sea, high seas, hydrol, hydrometeor, hydrosphere, limewater, main, main sea, mineral water, ocean, ocean depths, ocean main, ocean sea, rain, rainwater, salt sea, sea, sea water, soft water, spring water, steam, thalassa, the bounding main, the brine, the briny, the briny deep, the deep, the deep sea, the seven seas, the vasty deep, tide, water, water vapor, well water, wetting agent, wetting-out agent
ROGET THESAURUS
salt water
Ocean
N
sea, ocean, main, deep, brine,
salt water, waves, billows, high seas, offing, great waters, watery waste, vasty deep, wave, tide, hydrography, hydrographer, Neptune, Poseidon, Thetis, Triton, Naiad, Nereid, sea nymph, Siren, trident, dolphin, oceanic, marine, maritime, pelagic, pelagian, seagoing, hydrographic, bathybic, cotidal, at sea, on sea, afloat.