S: (n) body of water, water (the part of the earth's surface covered with water (such as a river or lake or ocean)) "they invaded our territorial waters"; "they were sitting by the water's edge"
S: (n) sea (a division of an ocean or a large body of salt water partially enclosed by land)
S: (n) gulf, disconnect, disconnection (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"
S: (n) chasm (a deep opening in the earth's surface)
S: (n) abyss, abysm (a bottomless gulf or pit; any unfathomable (or apparently unfathomable) cavity or chasm or void extending below (often used figuratively))