A duel. / (by extension) A disagreement strong enough to evoke a duel.

A thin ambient light which precedes true dawn, typically by around an hour, in certain parts of the world.

Daybreak.

plural of dawn patrol

(Islam) fajr, the first of the five daily prayers offered by practising Muslims.

plural of dawn prayer

A large deciduous conifer native to China, Metasequoia glyptostroboides, a well-known living fossil.

plural of dawn redwood

plural of dawn chorus

(idiomatic) A new beginning; a fresh start; an important, promising turning point.