0 to give permission for something to happen: --
1 a traffic signal with the green part lit as a signal that it is safe to go: --
The developers were given a green light to go forward with the project.
2 permission to start doing something: --
3 to give permission for someone to do something or for something to happen: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.