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Reference : Idioms : Colours : give the green light

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give the green light

Meaning: If you give something the green light, you give permission for it to be done, or allow it to happen.

For example:

  • The government has given the green light to our tree-planting project, so we can go ahead and start organizing things.

  • As soon as our CEO gives the new product the green light, we'll start planning production.

Quick Quiz:

If we're given the green light by the local council, we'll
  1. start building our factory
  2. have to build it somewhere else
  3. have to do an environmental impact study