Tall (of a person) — having a greater than average height.
彼は背が高いので、バスケットボールが上手だ。
He's tall, so he's good at basketball.
背が高い人は電車のつり革に楽に手が届く。
Tall people can easily reach the straps on the train.
背が高い子どもはよくスポーツで注目される。
Tall children often attract attention in sports.