THESAURUS
Trident
V, branch, clover, crotch, crutch, delta, deltoid, deuce-ace, fan, fork, furcula, furculum, groin, inguen, leash, offshoot, prong, ramification, set of three, shamrock, stem, tercet, ternary, ternion, terzetto, three, three-cornered, three-dimensional, three-footed, three-pronged, three-sided, threesome, tierce, trefoil, trey, triad, trialogue, triangle, triangular, triangulate, triarch, trichotomous, tricorn, tricornered, tricuspid, tridental, triennium, trifid, triflorate, triflorous, trifurcate, trigonal, trigonoid, trigrammatic, trihedral, trihedron, trilateral, trilogy, trimerous, trimester, trine, trinity, trinomial, trio, triparted, tripartite, triphthong, triple crown, triple threat, triplet, triplopy, tripod, tripodic, triptych, triquetral, triquetrous, trireme, trisected, triseme, triskelion, trisul, triumvirate, triunity, trivet, troika, wishbone
ROGET THESAURUS
Trident
Triality
N
triality, trinity, triunity, three, triad, triplet, trey, trio, ternion, leash, shamrock, tierce, spike-team, trefoil, triangle, trident, triennium, trigon, trinomial, trionym, triplopia, tripod, trireme, triseme, triskele, triskelion, trisula, third power, cube, cube root, three, triform, trinal, trinomial, tertiary, ternary, triune, triarch, triadie, triple, tri-, tris-, tria juncta in uno.
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.