1dawn 
/ˈdɑ:n/ noun
plural dawns /ˈdɑ:n/ noun 1 : the time of day when sunlight first begins to appear [noncount] ▪ We arrived at/before/after dawn. [=sunrise, daybreak] ▪ We danced till dawn. ▪ the dawn's clear light ▪ as dawn breaks over the city ▪ He woke up at the crack of dawn. [=very early in the morning] ▪ She drove from dawn to/until dusk. [=from early morning until early evening] [count] ▪ Winter brings late dawns and early sunsets. — compare dusk 2 [count] : the beginning of something — usually singular — usually + of ▪ People have fought with each other since the dawn of history/time/civilization. ▪ the dawn of a new era/age ▪ at the dawn of the 21st century
