Plummet (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">plummet</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for plunge that I've seen before include "Thrust or dive into" , "Sudden drop" , "land in water" , "Thrust into liquid" , "A steep drop" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">plummet</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 nosedive that I've seen before include "sudden drop" , "steep fall" , "(Make a) steep downward plunge" , "drop sharply" , "headlong plunge" .)