This is the 10240th most frequent Japanese word.
雄彦
"雄彦" is a Japanese male given name, typically meaning "heroic man" or "masculine glory," depending on the kanji interpretation.
In this sentence, 雄彦 is used as a proper noun, specifically as a name referring to a person.
雄彦さんは優しい人です。
Mr. Takehiko is a kind person.
Here, 雄彦 is introduced as the name of an individual unknown or unfamiliar to the speaker or listener, highlighting the word's use as identification.
この本を著したのは雄彦という人です。
The person who authored this book is someone named Takehiko.
In this example, 雄彦 is discussed as a name itself, specifying that the name is notable for its rarity.