Sunup vs. Sundown — What's the Difference?

The time of sunrise.

The time in the evening when the sun disappears or daylight fades.

(US) The time of day when the sun appears above the eastern horizon.

The time of sunset.

(US) The change in color of the sky at sunup.

(US) Sunset.

Sunrise.

(countable) A hat with a wide brim to shade the eyes from sunlight.

The first light of day;

To experience an episode or an onset of some detrimental mental condition like agitation, anxiety, hallucination or dementia, daily at nightfall.

The setting of the sun; sunset.

A kind of broad-brimmed sun hat worn by women.

The time in the evening at which the sun begins to fall below the horizon