Green Light Definition
noun
The green-colored light that signals traffic to proceed.
American Heritage
Permission or authorization to proceed with a proposed undertaking, as the project of making a film from a script that has been submitted.
Webster's New World
Synonyms:
verb
Alternative spelling of greenlight.
Wiktionary
Origin of Green Light
From the standard red-green color scheme used in traffic lights and railway signals.
From Wiktionary
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