Refers to a single motion in sports like tennis, golf, or swimming. Also used for a swimming stroke style.
彼のテニスのストロークはとても力強い。
His tennis strokes are very powerful.
平泳ぎのストロークを練習する。
I practice the breaststroke.
He hit a sharp backhand stroke.
If you lengthen your stroke, you'll swim faster.
stroke play; medal play