Noun: first light furst lIt
- The first light of day
"we got up before first light";
- dawn, dawning, morning, aurora, daybreak, break of day, break of the day, dayspring, sunrise, sunup, cockcrow
- (astronomy) the time when a telescope first takes images or data
"The new space telescope achieved first light, capturing its inaugural images"
Derived forms: first lights
Type of: hour, time of day
Encyclopedia: First light