1. The daily event of the sun sinking below the horizon
   "The couple enjoyed a romantic walk along the beach at sunset"
    
2. The time in the evening at which the sun begins to fall below the horizon
   "They returned to camp at sunset";
   - sundown
    
3. Atmospheric phenomena accompanying the daily disappearance of the sun
   "The sunset over the ocean was a breathtaking spectacle"

1. Of a declining industry or technology
   "sunset industries"
    
2. Providing for termination
   "a program with a sunset provision"

1. To phase out or terminate a program, law, or product gradually
   "The company decided to sunset the older software version"
    
2. (legislation) to include a provision that automatically terminates a law or regulation after a specific date
   "The bill was sunsetted to expire in five years unless renewed"

Derived forms: sunsets, sunsetted, sunsetting

See also: last, old

Type of: atmospheric phenomenon, hour, periodic event, recurrent event, time of day

Part of: eve, even, evening, eventide [archaic]

Encyclopedia: Sunset, TX