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1. To allow a project (especially a TV show) to go ahead
    
2. Give permission or approval for something
   "I will greenlight his educational policies";
   - approve, O.K., okay, sanction, OK, green-light

1. A signal to proceed
   - go-ahead, thumbs-up [informal]
    
2. Permission to proceed with a project or to take action
   "they gave the green light for construction to begin"

Derived forms: green-lighting, greenlights, greenlighting, green-lighted, greenlighted, green-lights, green lights

Type of: authorise [Brit], authorize, clear, pass, permission, robot [S.Africa], stoplight [N. Amer], traffic light, traffic signal

Encyclopedia: Greenlight