1.  gulf(n = noun.object) - an arm of a sea or ocean partly enclosed by land; larger than a bay;
is a kind of body of water, water
is a part of sea
has particulars: gulf of aden, gulf of alaska, gulf of antalya, gulf of akaba, gulf of aqaba, gulf of bothnia, gulf of california, sea of cortes, bay of campeche, golfo de campeche, gulf of campeche, carpentaria, gulf of carpentaria, gulf of corinth, gulf of lepanto, gulf of finland, gulf of guinea, gulf of martaban, golfo de mexico, gulf of mexico, bay of ob, gulf of ob, gulf of oman, gulf of riga, gulf of saint lawrence, gulf of st. lawrence, gulf of sidra, gulf of suez, gulf of tehuantepec, gulf of siam, gulf of thailand, gulf of venice, arabian gulf, persian gulf

2.  gulf(n = noun.attribute) disconnect, disconnection - 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"
is a kind of disparity

3.  gulf(n = noun.object) - a deep wide chasm;
is a kind of chasm

1.  A hollow place in the earth; an abyss; a deep chasm or basin, [1913 Webster]
"He then surveyed
Hell and the gulf between." [1913 Webster]
"Between us and you there is a great gulf fixed." [1913 Webster]

2.  That which swallows; the gullet. Shak. [1913 Webster]

3.  That which swallows irretrievably; a whirlpool; a sucking eddy. Shak. [1913 Webster]
"A gulf of ruin, swallowing gold." [1913 Webster]

4.  A portion of an ocean or sea extending into the land; a partially land-locked sea; as, the Gulf of Mexico. [1913 Webster]

5.  A large deposit of ore in a lode. [1913 Webster]
"It originates in the westward equatorial current, due to the trade winds, is deflected northward by Cape St. Roque through the Gulf of Mexico, and flows parallel to the coast of North America, turning eastward off the island of Nantucket. Its average rate of flow is said to be about two miles an hour. The similar Japan current, or Kuro-Siwo, is sometimes called the Gulf Stream of the Pacific." [1913 Webster]

gulf, n. & v.
--n.
1 a stretch of sea consisting of a deep inlet with a narrow mouth.
2 (the Gulf) the Persian Gulf.
3 a deep hollow; a chasm or abyss.
4 a wide difference of feelings, opinion, etc.
--v.tr. engulf; swallow up.

Idiom:
Gulf Stream an oceanic warm current flowing from the Gulf of Mexico to Newfoundland where it is deflected into the Atlantic Ocean.

Etymology:
ME f. OF golfe f. It. golfo ult. f. Gk kolpos bosom, gulf

N  interval, interspace, separation, break, gap, opening, hole, chasm, hiatus, caesura, interruption, interregnum, interstice, lacuna, cleft, mesh, crevice, chink, rime, creek, cranny, crack, chap, slit, fissure, scissure, rift, flaw, breach, rent, gash, cut, leak, dike, ha-ha, gorge, defile, ravine, canon, crevasse, abyss, abysm, gulf, inlet, frith, strait, gully, pass, furrow, abra, barranca, barranco, clove, gulch, notch, yawning gulf, hiatus maxime, hiatus valde deflendus, parenthesis, void, incompleteness, period, interim (time), with an interval, far between, breachy, rimose, rimulose, at intervals, longo intervallo.

N  depth, deepness, profundity, depression, hollow, pit, shaft, well, crater, gulf, bowels of the earth, botttomless pit, hell, soundings, depth of water, water, draught, submersion, plummet, sound, probe, sounding rod, sounding line, lead, bathymetry, sonar, side-looking sonar, bathometer, deep, deep seated, profound, sunk, buried, submerged, subaqueous, submarine, subterranean, subterraneous, subterrene, underground, bottomless, soundless, fathomless, unfathomed, unfathomable, abysmal, deep as a well, bathycolpian, benthal, benthopelagic, downreaching, yawning, knee deep, ankle deep, beyond one's depth, out of one's depth, over head and ears, mark twine, mark twain.

N  gulf, lake, land covered with water, gulf, gulph, bay, inlet, bight, estuary, arm of the sea, bayou, fiord, armlet, frith, firth, ostiary, mouth, lagune, lagoon, indraught, cove, creek, natural harbor, roads, strait, narrows, Euripus, sound, belt, gut, kyles, continental slope, continental shelf, lake, loch, lough, mere, tarn, plash, broad, pond, pool, lin, puddle, slab, well, artesian well, standing water, dead water, sheet of water, fish pond, mill pond, ditch, dike, dyke, dam, reservoir, alberca, barachois, hog wallow, lacustrine, gulf, lake, land covered with water, gulf, gulph, bay, inlet, bight, estuary, arm of the sea, bayou, fiord, armlet, frith, firth, ostiary, mouth, lagune, lagoon, indraught, cove, creek, natural harbor, roads, strait, narrows, Euripus, sound, belt, gut, kyles, continental slope, continental shelf, lake, loch, lough, mere, tarn, plash, broad, pond, pool, lin, puddle, slab, well, artesian well, standing water, dead water, sheet of water, fish pond, mill pond, ditch, dike, dyke, dam, reservoir, alberca, barachois, hog wallow, lacustrine.

arabian gulf, gulf coast, gulf of aden, gulf of aegina, gulf of akaba, gulf of alaska, gulf of antalya, gulf of aqaba, gulf of bothnia, gulf of california, gulf of campeche, gulf of carpentaria, gulf of corinth, gulf of finland, gulf of guinea, gulf of lepanto, gulf of martaban, gulf of mexico, gulf of ob, gulf of oman, gulf of riga, gulf of saint lawrence, gulf of siam, gulf of sidra, gulf of st. lawrence, gulf of suez, gulf of tehuantepec, gulf of thailand, gulf of venice, gulf states, gulf stream, gulf war, gulf war syndrome, persian gulf, persian gulf illness, persian gulf war, saronic gulf