noun
3x3 basketball
Refers to the half-court basketball format with three players per side.
３ｘ３は東京オリンピックから正式種目になった。
3x3 basketball became an official event starting from the Tokyo Olympics.
彼はストリートで３ｘ３をよくプレーしている。
He often plays 3x3 on the street.
Standard five-on-five basketball; ３ｘ３ is a distinct half-court variant.
From English '3x3', referring to the three-on-three format.