give the green light(redirected from gave them the green light)
give somebody/something the green lightalso give the green light to somebody/something
to give permission for something to happen She's waiting for her doctor to give her the green light to play in Saturday's game.
Usage notes: also used in the form give a green light: The House of Representatives gave a green light to oil exploration off the East Coast.
give somebody/something the green light
to give permission for someone to do something or for something to happen (often + to do sth) They've just been given the green light to build two new supermarkets in the region. (often + to ) The local prefect has given the green light to the dam at Serre de la Fare.