My older brother is good at ball sports, especially basketball.
体育の授業で球技をした。
We played ball sports in PE class.
Only when written 球戯
Dated term for billiards, using the older kanji 球戯. Modern Japanese normally uses ビリヤード.
See also: ビリヤード
昔は球戯といえばビリヤードのことだった。
In the past, 球戯 referred to billiards.
We did a ball game activity in PE class.
スポーツ is the general word for sports of any kind, while 球技 specifically means sports played with a ball, like soccer or tennis.
ビリヤード is the modern standard word for billiards, while 球技 in its dated second sense (from 球戯) refers to the same game with old-fashioned kanji.
Standard modern spelling for ball games in general.
Dated kanji form, now largely replaced by 球技. Used specifically for billiards in older contexts.
Compound of 球 (ball) and 技 (technique, skill). The variant 球戯 uses 戯 (play, game) and is now dated.