Green Light

Green light or greenlight may refer to:

• The wavelengths of light perceived as green by the human eye
• The green light on a traffic light
• Green-light, formal approval of a project to move forward
• Fishing light attractor
• Green light (UFO), a type of unidentified flying objects
• Greenlight (internet service), a fiber-optic internet service provided by the city of Wilson, North Carolina
• Green Light (novel), a 1935 novel by Lloyd C. Douglas
• Green Light, a precursor to the Sea Cat surface-to-air missile
• Steam Greenlight, a service part of Valve's Steam software