Noun

(en-noun)

The upper front of the neck, next to the chin; the upper throat.

(zoology) A plate which in most insects supports the submentum.

(architecture) A capping moulding; a cymatium.

(Webster 1913) ----

Noun

(en noun)

A hollow place in the earth; an abyss; a deep chasm or basin.

* Milton

He then surveyed / Hell and the gulf between.

* Bible, Luke xvi. 26

Between us and you there is a great gulf fixed.

(obsolete) That which swallows; the gullet.

* 1606 , , IV. i. 23:

Witch's mummy, maw and gulf / Of the ravined salt sea shark,

That which swallows irretrievably; a whirlpool; a sucking eddy.

* Tennyson

a gulf of ruin, swallowing gold

(geography) A portion of an ocean or sea extending into the land; a partially landlocked sea; as, the Gulf of Mexico or Persian Gulf.

(mining) A large deposit of ore in a lode.

A difference, especially a large difference, between groups

* {{quote-news

, year=2012 , date=September 7 , author=Phil McNulty , title=Moldova 0-5 England , work=BBC Sport citation , page= , passage=England were graphically illustrating the huge gulf in class between the sides and it was no surprise when Lampard added the second just before the half hour. Steven Gerrard found his Liverpool team-mate Glen Johnson and Lampard arrived in the area with perfect timing to glide a header beyond Namasco.}}