Gulf

n.	1.	A hollow place in the earth; an abyss; a deep chasm or basin, He then surveyed Hell and the gulf between. - Milton. Between us and you there is a great gulf fixed. - Luke xvi. 26.
	2.	That which swallows; the gullet.
	3.	That which swallows irretrievably; a whirlpool; a sucking eddy. A gulf of ruin, swallowing gold. - Tennyson.
	4.	(Geog.) A portion of an ocean or sea extending into the land; a partially land-locked sea; as, the Gulf of Mexico.
	5.	(Mining) A large deposit of ore in a lode. Gulf Stream (Geog.) the warm ocean current of the North Atlantic. Gulf weed (Bot.) a branching seaweed (Sargassum bacciferum, or sea grape), having numerous berrylike air vessels, - found in the Gulf Stream, in the Sargasso Sea, and elsewhere.

Noun	1.	gulf - an arm of a sea or ocean partly enclosed by land; larger than a bay
	2.	gulf - an unbridgeable disparity (as from a failure of understanding); "he felt a gulf between himself and his former friends"; "there is a vast disconnect between public opinion and federal policy" Synonyms: disconnect, disconnection
	3.	gulf - a deep wide chasm

Charybdis, Maelstrom, abysm, aperture, arm, armlet, arroyo, back stream, backflow, backwash, backwater, bayou, belt, bight, boca, box canyon, breach, broaching, cave, cavity, chap, check, chimney, chink, clearing, cleuch, clough, col, coulee, couloir, countercurrent, counterflow, counterflux, cove, cranny, crater, creek, crevasse, crevice, cwm, deep, defile, dell, depth, dig, diggings, dike, disclosure, ditch, donga, draw, eddy, estuary, euripus, excavation, fault, fenestra, fiord, firth, fissure, fistula, fjord, flaw, flume, fontanel, foramen, fracture, frith, furrow, gap, gape, gash, gat, gorge, groove, gulch, gully, gurge, gut, harbor, hiatus, hole, hollow, incision, inlet, interval, joint, kloof, kyle, lacuna, laying open, leak, loch, lough, maelstrom, mine, moat, mouth, narrow, narrow seas, narrows, natural harbor, notch, nullah, opening, opening up, orifice, outlet, pass, passage, passageway, pit, pore, quarry, reach, refluence, reflux, regurgitation, rent, rift, rime, road, roads, roadstead, rupture, scissure, seam, shaft, slit, slot, slough, space, split, stoma, strait, straits, swirl, throwing open, trench, twirl, uncorking, unstopping, valley, void, vortex, wadi, well, whirl, whirlpool, workings, yawn, yawning abyss