first light
Americannoun
noun
Etymology
Origin of first light
First recorded in 1945–50
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The first light able to travel freely from that moment on is what we now observe as the cosmic microwave background.
From Science Daily ● Oct. 4, 2026
"Work started early in the morning because the planes took off at first light... and operations usually wrapped up at dusk, making for long, intense days," he said.
From Barron's ● Oct. 1, 2026
The first light also sets an internal timer for melatonin to be produced again 14 hours later.
From The Wall Street Journal ● Jan. 11, 2026
Shortly after picking up our dinner at Joan’s on Third, my friend started asking Lynda questions — first light questions like “Where are you from?” and “What do you do?”
From Los Angeles Times ● Dec. 12, 2025
The fishing boats that went out from Provincetown went out when night was still dark, so that as the first light brought out the fish they could be there, nets down and ready.
From "Homecoming" by Cynthia Voigt
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