Gulf

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

That which swallows; the gullet.

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

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

A large deposit of ore in a lode.

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"