A large body of salt water.
A lake, especially if large or if salty or brackish.
The swell of the sea; a single wave; billow.
(in combination) Living or used in or on the sea; of, near, or like the sea.
Anything resembling the vastness or turbulence of the sea.
A constant flux of gluons splitting into quarks, which annihilate to produce further gluons.
A large, dark plain of rock; a mare.
A very large lake of liquid hydrocarbon.