A lake, especially if large or if salty or brackish. Example: The Caspian Sea, the Sea of Galilee, the Salton Sea, etc.
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. Example: Seaman, sea gauge, sea monster, sea horse, sea level, seaworthy, seaport, seaboard, etc.
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. Example: The Apollo 11 mission landed in the Sea of Tranquility.
A very large lake of liquid hydrocarbon.
All clues having "SEAS"
for an answer:
You can find a list of possible crossword clues for SEAS below.