greenlight

• green-light

From green light.

• IPA^(key): /ˈɡɹiːnlaɪt/

greenlight (third-person singular simple present greenlights, present participle greenlighting, simple past and past participle greenlighted or greenlit)

1. (transitive) To approve; to permit to proceed.
   • 2020 December 2, Paul Stephen, “Network News: Sunak focuses on jobs, infrastructure and 'levelling up'”, in Rail, page 7:

     Labour's Shadow Chancellor Anneliese Dodds hit back at Sunak and said that his failure to greenlight major projects such as Northern Powerhouse Rail showed that government claims of levelling up the country were "not supported by the evidence".

2. (transitive, slang) To approve or requisition another's harm or death; to put a hit out on.

The past participle greenlit is now more common.[1]

• (approve): allow, approve, give the go-ahead, give the green light, permit

• redlight