first light

first light

n the time when light first appears in the morning; dawn

first light

The beginning of morning nautical twilight; i.e., when the center of the morning sun is 12 degrees below the horizon.

Thesaurus

Noun

1.

first light - the first light of day; "we got up before dawn"; "they talked until morning"aurora, break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, sunrise, sunup, morningtime of day, hour - clock time; "the hour is getting late"