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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.

green-light

verb (used with object), green-lighted or green-lit, green-lighting.
1.
to give permission to proceed; authorize:
The renovation project was green-lighted by the board of directors.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for green-light
  • The problem is that the laser's green-light photons don't pack much of a punch.
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
verb (transitive) -lights, -lighting, -lighted
3.
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
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Slang definitions & phrases for green-light

green-light

verb

To approve; sanction: Who in the world thought that Levinson's screenplay should be green-lighted? (1968+)


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Word of The Day

Difficulty index for green light

Few English speakers likely know this word

Word Value for green

6
8
Scrabble Words With Friends

Quotes with green-light