any undomesticated goose, especially the greylag of Britain or the Canada goose.
Origin of wild goose
before 1050; Middle English; Old English
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the Wild Geese the Irish expatriates who served as professional soldiers with the Catholic powers of Europe, esp France, from the late 17th to the early 20th centuries
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