green light

Authorization to proceed

Green light is permission or approval to proceed, from the traffic signal that means go: The board gave us the green light to move forward with the project.

To green-light something is to authorize it: The studio green-lit the sequel.

The literal green light controls traffic flow at intersections.

approval

permission

Granted right to act

endorsement · sanction · consent · thumbs-up · blessing · nod · okay · sign-off · ratification · validation

go

proceed

Move forward, continue

launch · commence · initiate · embark · move forward · accelerate · progress · continue · activate · engage

signal

stoplight

Intersection flow controller

amber · yield · semaphore · beacon · indicator · junction · signalization · traffic control · crossroads · flashing

energy

renewable

Capable of restoration

sustainable · clean energy · photovoltaic · turbine · carbon-neutral · eco-friendly · low-emission · biomass · geothermal · efficiency

environment

eco-friendly

Not harming the environment

recyclable · biodegradable · organic · low-impact · environmentally friendly · LEED · sustainability · ecological · emission-free · climate-conscious

Categories
Opposites
permission/authorization

green lightred light

Traffic control meaning halt

veto · rejection · refusal · denial · prohibition

traffic signals

green lightred light

Traffic control meaning halt

stop signal · yellow light · amber light · stop light · red

project/decision status

green lightred light

Traffic control meaning halt

cancellation · shutdown · shelving · hold · axe

Family

light, green, lighten, lighting, greens, greenhouse, greenery, greenish, greenness

Familiarity
Top 10,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Positive · Everyday, not technical · Rated G