English · Idiom Attested

green light

In real, traceable use. Part of the curated seed collection; community review is coming.

Both English Tiếng Việt

Meaning · English

Permission to go ahead.

Nghĩa · Tiếng Việt

Sự cho phép để tiếp tục

Machine-translated — suggest a fix

Where it’s used: Used Widespread English

Examples

But the nuclear industry had by this time received yet a further green light.

PRAGUE – At the close of last year, European ~ Union finance ministers gave the green light to a new supervisory architecture for the EU ’s financial markets.

British National Corpus sentence via the MAGPIE corpus (CC BY 4.0, retrieved 2026-07-30)

Sources & notes

Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Figurative class: Metaphor (PIE-English corpus, CC BY 4.0, retrieved 2026-07-31).

Topics: Colors

Common questions

What does “green light” mean?

Permission to go ahead.

Is “green light” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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