green light

1. 1.

   a signal to proceed

   Synonymsgo-ahead

   Broadertraffic light
2. 2.

   permission to proceed with a project or to take action

   “the gave the green light for construction to begin”

   Broaderpermission

Questions about green light

What does green light mean?

green light means "a signal to proceed". That is the primary sense; the word has 2 in total, listed in full on this page.

What is another word for green light?

Close synonyms include go-ahead. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is green light a common word?

green light is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.