The majority (4)
I believe the answer is:
most
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the majority</span>' is the definition.<br/ ><span class="explanation-format__explanation">(most of a group)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for most that I've seen before include "Kind of commercial pact where two countries agree to treat each other as well as any other" , "Greatest in amount or degree" , "Nearly all, majority" , "In the highest degree" , "Almost all" .)