THESAURUS
Davy, Davy Jones, Dylan, Neptune, Nereid, Nereus, Oceanid, Oceanus, Poseidon, Thetis, Varuna, fresh-water nymph, kelpie, limniad, man fish, mermaid, merman, naiad, nix, nixie, ocean nymph, sea devil, sea god, sea nymph, sea-maid, sea-maiden, seaman, siren, undine, water god, water spirit, water sprite
ROGET THESAURUS
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.