Definition of wild goose
1 : an undomesticated goose: such as a England : greylag b : canada goose
2 : an Irish Jacobite who left Ireland after the abdication of James II and served in the French army; broadly : an expatriate Irishman
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Origin and Etymology of wild goose
Middle English wilde gos, from Old English wilde gōs, from wilde wild + gōs goose
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