gulf
A hollow place in the earth; an abyss; a deep chasm or basin.
(obsolete) That which swallows; the gullet.
That which swallows irretrievably; a whirlpool; a sucking eddy.
(geography) A portion of an ocean or sea extending into the land; a partially landlocked sea
(mining) A large deposit of ore in a lode.
(figurative) A wide interval or gap; a separating space.
(figurative) A difference, especially a large difference, between groups.
(Oxbridge slang) The bottom part of a list of those awarded a degree, for those who have only just passed.
To engulf.
To award a degree to somebody who has only just passed sufficiently.