| n. | 1. | The descent of the sun below the horizon; also, the time when the sun sets; evening. Also used figuratively. | |||
| 2. | Hence, the region where the sun sets; the west.
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| Noun | 1. | sunset - the time in the evening at which the sun begins to fall below the horizon Synonyms: sundown Antonyms: aurora, break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, first light, sunrise, sunup, morning - the first light of day; "we got up before dawn"; "they talked until morning" |
| 2. | sunset - atmospheric phenomena accompanying the daily disappearance of the sun | |
| 3. | sunset - the daily event of the sun sinking below the horizon | |
| Adj. | 1. | sunset - of a declining industry or technology; "sunset industries" |
| 2. | sunset - providing for termination; "a program with a sunset provision" |