Translation guide
The sport of rugby. In Japanese, the word is almost always expressed with the loanword ラグビー. There is also a traditional term 闘球, but it is rarely used.
Referring to the sport itself, rugby matches, or rugby-related activities.
The standard Japanese word for rugby. Used in all contexts: casual, formal, news, etc.
I'm going to watch a rugby match this weekend.
A rare, traditional Japanese term for rugby. Literally 'fighting ball'. Almost never used in modern conversation; may appear in historical contexts or as a stylistic choice.
Tōkyū is an old name for rugby.
He played rugby in high school.