twilight has definitions from the field of physics
1
[ noun ] (physics) the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth

Synonyms

dusk

Used in print

(Robert Penn Warren, Wilderness....)

He recognized her because she was the one who , in a winter twilight , on the edge of camp , had once stopped him and reached down her hand to touch his fly .

What had that man , that other young Jew , felt as he stood in the twilight and heard other men , far_away , singing together ?

Related terms

light semidarkness

2
[ noun ] the time of day immediately following sunset

Examples

"he loved the twilight" "they finished before the fall of night"

Related terms

hour night evening

3
[ noun ] (physics) the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth

Related terms

light

4
[ adjective ] lighted by or as if by twilight

Synonyms

dusky twilit

Examples

"The dusky night rides down the sky/And ushers in the morn"-Henry Fielding "the twilight glow of the sky" "a boat on a twilit river"

Related terms

dark

5
[ noun ] a condition of decline following successes

Examples

"in the twilight of the empire"

Related terms

decline

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