green light
noun [ C, usually singular ]
ukuspermission to start doing something:
the green light for sth They finally got the green light for their project.
the green light to do sth The Commission gave us the green light to start negotiations.
The best that investors can hope for is that the report will be seen as a green light for takeovers.
green light
verb [ T ]
(also green-light); (greenlight) ukusto give permission for someone to do something or for something to happen:
The committee must greenlight the proposal before it goes to the Board.