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green-light

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verb (used with object), green·-light·ed or green·-lit, green·-light·ing.
  1. to give permission to proceed; authorize: The renovation project was green-lighted by the board of directors.
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green light

noun
  1. a green-colored traffic light used to signal drivers, pedestrians, etc., that they may proceed.
  2. authorization; approval; permission: The railroad has been given the green light on the proposed fare increase.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for green-light

Contemporary Examples

Historical Examples

  • 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

noun
  1. a signal to go, esp a green traffic light
  2. permission to proceed with a project
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verb greenlight -lights, -lighting or -lighted (tr)
  1. to permit (a project, etc) to proceed
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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