n. 25B6; noun
we arrived at twilight : DUSK, sunset, sundown, nightfall, evening, close of day; poetic/literary eventide.
it was scarcely visible in the twilight : HALF-LIGHT, semi-darkness, gloom.
the twilight of his career : DECLINE, waning, ebb; autumn, final years.
crepuscular.
dawn.
25B6; adjective a twilight world : SHADOWY, dark, shady, dim, gloomy, obscure.