also: おごころ
noun
heroic spirit; brave heart; aspiration; ambition
A somewhat literary word for a bold, ambitious spirit or a heart that aims high. Often used in formal or motivational contexts.
彼は若い頃から雄心を抱いて上京した。
He came to Tokyo with a heroic spirit from a young age.
その起業家の雄心が会社を大きく成長させた。
The entrepreneur's ambition drove the company's great growth.
The word is composed of 雄 (heroic, masculine) and 心 (heart, spirit). The reading ゆうしん is the standard on'yomi combination. The alternative reading おごころ is a rare kun'yomi-based reading, but its historical derivation is uncertain.