 Across the United Kingdom, rugby union is usually referred to simply as 'rugby' but in the North of England, the word 'rugby' could refer to either sport, but usually means "rugby league".The nickname "rugger", which developed in England's elite schools, almost always refers to rugby union.In Australia and New Zealand, rugby league is usually known as "league" or "football" with the latter term potentially confusing as Australian rules football and association football could also be called football.