Threescore (5)
I believe the answer is:
sixty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">threescore</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sixty that I've seen before include "Number" , "As many as four rugby teams" , "Roman LX" , "Prison" , "Diamond jubilee's year count" .)