a portion of an ocean or sea partly enclosed by land.

a deep hollow; chasm or abyss.

any wide separation, as in position, status, or education.

something that engulfs or swallows up.

to swallow up; engulf.

noun

basin , bay , bayou , bight , cove , firth , harbor , slough , sound , whirlpool , abyss , breach , cave , cavity , chasm , cleft , crevasse , depth , depths , distance , expanse , gap , gulch , hiatus , hollow , opening , pit , ravine , rent , rift , separation , shaft , split , void , well , abysm , inlet , maelstrom , rapids , vortex