- an arm of a sea or ocean partly enclosed by land; larger than a bay
 
- 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"
 
- a deep wide chasm
 
- Gulf (1949) is a novella by Robert A. Heinlein, originally published as a serial in the November and December 1949 issues of Astounding Science Fiction. It concerns a secret society of geniuses who act to protect humanity.  The novel Friday, written in 1982, was loosely a sequel.
 
- The Gulf of Mexico (Golfo de México) is the ninth largest body of water in the world. It is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. ...
 
- The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.Working Paper No. ...
 
- A hollow place in the earth; an abyss; a deep chasm or basin;  That which swallows; the gullet. w:William Shakespeare; That which swallows irretrievably; a whirlpool; a sucking eddy. ...
 
- a part of an ocean or sea extending into the land
 
- The favourite sport of Geography profs is gulf.
 
- Creek Canyon Preserve, in St. Clair County near the private Horse Pens 40 nature park, sits high on a mountain overlooking central Alabama. Obtained in 1999, the preserve is split by Gulf Creek, which drains through a gorge several hundred feet deep. ...
 
- War veterans were exposed to a number of sources of these compounds, including nerve gas and pesticides.
 
- a body of water forming a coastal indentation in which the mouth is narrower than the magnitude of the indentation.
 
- The country around the Gulf of Carpentaria
 
- a body of water existing within a large embayment of a continental coastline
 
- Part of an ocean that extends into the land; larger than a bay.
 
- gullet (throat or esophagus)
 
- A deep cut in the ground