tee ball; T-ball
A children's version of baseball where the ball is hit off a stationary tee.
小学生のとき、ティーボールをやっていました。
I played tee ball when I was in elementary school.
tea ball; tea strainer
A spherical metal strainer used for brewing loose-leaf tea.
このティーボールは茶葉が広がりやすい。
This tea ball allows the tea leaves to expand easily.
From English 'tee ball' (the sport) and 'tea ball' (the strainer).