Brine (4,5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">brine</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for salt water that I've seen before include "part of recipe for boiled potatoes?" , "Walter sat in brine" , "Of or living in the sea, related to saline content" , "Tears" , "briny" .)
(Other definitions for saline that I've seen before include "Salty like sea water" , "Like contents of cellar" , "Intravenous feeding" , "Like seawater" , "like the Mediterranean?" .)
(Another definition for saltwater that I've seen is " sea".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">brine</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that brine can be written as seawater)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for seawater that I've seen before include "Brine" , "What breaches dyke, perhaps" , "Drink" .)