Question 1

What does "give the green light" mean?

Accepted Answer

To give official approval or permission to proceed.

Question 2

How do you use "give the green light" in a sentence?

Accepted Answer

The board finally gave the green light for the new expansion project.

Question 3

Is "give the green light" formal or informal?

Accepted Answer

"give the green light" is register-neutral — appropriate in both casual and formal contexts. Common in business and management contexts.