green light

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. a signal to proceed
• Syn:
go-ahead
• Derivationally related forms:
go ahead (for: go-ahead)
• Hypernyms:
traffic light, traffic signal, stoplight
2. permission to proceed with a project or to take action
- the gave the green light for construction to begin
• Hypernyms:
permission