Briny

SEA

["Think of the vast, salty expanse where waves crash and ships sail—it covers most of Earth’s surface."]

"Briny" is a poetic or old-fashioned word for salty water, which directly points to the ocean. The answer "SEA" fits because seawater is famously briny due to its high salt content. It’s a straightforward definition clue with no hidden wordplay—just a synonym for a salty body of water.