greenlight - definition and synonyms

verb [transitive] informal 

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/ˈɡriːnˌlaɪt/
present tense
I/you/we/theygreenlight
he/she/itgreenlights
present participlegreenlighting
past tensegreenlighted
past participlegreenlighted
  1. to give your approval for something

    So far three directors have greenlighted the project.