Five Nations
plural noun
1
- treated as sing. [often as modifier] Brit. an annual international rugby union championship involving England, France, Ireland, Scotland, and Wales〈英〉(由英格兰、法国、爱尔兰、苏格兰和威尔士参加的一年一度的国际橄榄球联盟的)五国(橄榄球锦标)赛。