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road-fund licence

British  

noun

  1. a licence showing that the tax payable in respect of a motor vehicle has been paid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of road-fund licence

C20: from the former road fund for the maintenance of public highways