Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “green light”

green light

noun [C]  /ˈɡrin ˈlɑɪt/
a traffic signal with the green part lit as a signal that it is safe to go: Wait for the green light before crossing the street. fig. A green light is also permission to do something: The developers were given a green light to go forward with the project.
(Definition of green light noun from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definitions of “green light” in other dictionaries

Translations of “green light”

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More