WC (3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wc</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both can mean a toilet)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for loo that I've seen before include "Lavatory - old card game" , "Privy" , "WC - old card game" , "In which one goes" , "A colloquial toilet" .)
(Other definitions for lav that I've seen before include "toilet" , "Private place in short" , "Loo" .)
(Other definitions for toilet that I've seen before include "It means washing" , "Plumbing fixture" , "something to go on?" , "Waste disposal unit" , "Smallest room" .)