green light
noun /ˌɡriːn ˈlaɪt/
/ˌɡriːn ˈlaɪt/
[singular]- permission for a project, etc. to start or continue synonym go-ahead
- The government has decided to give the green light to the plan.
- The council is expected to give the green light to the move.
- The industry must not assume that this ruling means a green light to go on polluting our lakes and rivers.