twilight

The diffused light from the sky during the early evening or early morning when the sun is below the horizon and its light is refracted by the earth’s atmosphere.

The time of the day when the sun is just below the horizon, especially the period between sunset and dark.

Dim or diffused illumination.

A period or condition of decline following growth, glory, or success.

A state of ambiguity or obscurity.

The light from the sky when the sun is below the horizon at morning and evening.

Hence, any faint light; partial darkness; shade.

Figuratively, an indistinct medium of perception; also, a state of faint or hazy mental illumination.

Belonging, pertaining, or peculiar to twilight; seen by twilight; crepuscular, as a hat or moth.