dawn

dawn (http://definr.com/dawn)

     n 1: the first light of day; "we got up before dawn"; "they
          talked until morning" [syn: dawning, morning, aurora,
           first light, daybreak, break of day, {break of
          the day}, dayspring, sunrise, sunup, cockcrow]
          [ant: sunset]
     2: the earliest period: "the dawn of civilization"; "the
        morning of the world" [syn: morning]
     3: an opening time period; "it was the dawn of the Roman
        Empire"
     v 1: become clear suddenly; "It dawned on him that she had
          betrayed him" [syn: click, get through, come home,
           get across, sink in, penetrate, fall into place]
     2: appear or develop; "The age of computers had dawned"
     3: become light; "It started to dawn, and we had to get up"