Main entry: sundown, sunset
Definition: the time in the evening at which the sun begins to fall below the horizon
Antonyms: break of day, break of the day, cockcrow, aurora, first light, morning, dawn, dawning, daybreak, dayspring, sunrise, sunup
Definition: the first light of day
Main entry: sunset
Definition: providing for termination
Usage: a program with a sunset provision
Antonyms: first
Definition: preceding all others in time or space or degree
Main entry: sunset
Definition: of a declining industry or technology
Usage: sunset industries
Antonyms: new
Definition: not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered
Definition: (used of living things especially persons) in an early period of life or development or growth