Augury (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">augury</span>' is the definition.<br/ ><span class="explanation-format__explanation">(omen is a kind of augury)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for omen that I've seen before include "Harbinger, augury" , "Augury, portent" , "Portent, prophetic indicator" , "Gloomy sign" , "Prognostication" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">augury</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 sign that I've seen before include "Engage by written agreement" , "Public notice; portent" , "Notice; symbol" , "Mark" , "house" .)