# green light

> English word · Noun

## Definitions
1. A traffic light in its green state (indicating that vehicles may proceed).
2. Approval, or permission to proceed.
3. A go-ahead to commit a crime, specifically to carry out a hit on someone (i.e. to kill).

## Etymology
From the standard red-green color scheme used in traffic lights and railway signals.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/green-light