give (someone) the green light

To grant someone permission to proceed with some action or task. Likened to the green light of a traffic signal. We're just waiting our manager to give us the green light before we release the latest software update.

Common Names:

Name	Pronounced	Usage
Laurena	-	English (Rare)
Sidonia	-	Late Roman, German
Diederich	DEE-de-rikh	German (Archaic)
Tiana	tee-AN-ə	English
ValdÍS	-	Ancient Scandinavian, Icelandic
Shania	shə-NIE-ə	English (Modern)