verb (used with object), green·-light·ed or green·-lit, green·-light·ing.

to give permission to proceed; authorize: The renovation project was green-lighted by the board of directors.

green light


a green-colored traffic light used to signal drivers, pedestrians, etc., that they may proceed.
authorization; approval; permission: The railroad has been given the green light on the proposed fare increase. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for green-light

Contemporary Examples of green-light

  • Obama also said Israel has “absolutely not” given Israel a green-light to attack Iran, as Biden had suggested.

    The Daily Beast logo
    The Sovereign Nation of Biden

    Lloyd Grove

    July 7, 2009

Historical Examples of green-light

  • I saw among them two or three of the green-light hand weapons.

    The White Invaders

    Raymond King Cummings

British Dictionary definitions for green-light

green light


a signal to go, esp a green traffic light
permission to proceed with a project

verb greenlight -lights, -lighting or -lighted (tr)

to permit (a project, etc) to proceed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012