Tablet (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tablet</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pill that I've seen before include "Pellet of medicine" , "Medicinal tablet" , "Form of medicine" , "nuisance to put up with" , "Medical tablet" .)
(Other definitions for bitter pill that I've seen before include "One unpleasant to swallow" , "It's hard to take" .)