broncobuster

Noun

(chiefly US) A person who breaks horses so that they can be ridden with a saddle.

Japanese Meaning

鞍で乗れるように馬を調教する人、特にそのような作業を行う人物

The seasoned broncobuster earned a reputation across the valley for taming the wildest horses.

熟練の馬馴らしは、谷一帯で最も荒い馬を手なずけることで評判を得ていた。

Sense（1）

(chiefly US) A person who breaks horses so that they can be ridden with a saddle.

broncobusters

（ plural ）