Sailors historically relied on twilight for celestial navigation, as it is the only time of day when both the horizon and the stars are visible simultaneously.
Definition
- the light from the sky between full night and sunrise or between sunset and full night produced by diffusion of sunlight through the atmosphere and its dust
- a period of decline
Synonyms
- dark
- dusk
- shadows
Pronunciation
Source
“twilight,” Merriam-Webster.com Dictionary, https://www.merriam-webster.com/dictionary/twilight. Accessed 12/13/2025.
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