acquis communautaire (?æki? k?m?ju?n?t??; French aki k?mynot?r) nthe body of law accumulated by the European Union. Often shortened to: acquis [C20: French, literally: acquired material of the Community]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014