sundown

Noun

 * 1)  Sunset.
 * 2)  A hat with a wide brim to shade the eyes from sunlight.
 * 1)  A hat with a wide brim to shade the eyes from sunlight.
 * 1)  A hat with a wide brim to shade the eyes from sunlight.

Synonyms

 * ,, ; see also Thesaurus:dusk

Verb

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