This is the 3283rd most frequent Japanese word.
弘
"弘" means "vast," "broad," or "to expand."
In this sentence, "弘" is used as part of a proper noun, specifically a name.
彼の名前は弘樹です。
His name is Hiroki.
Here, "弘" is used adjectivally to denote vastness or expansiveness as part of the adjective "弘大な".
この絵は弘大な森を描いています。
This painting depicts a vast forest.
In this sentence, "弘" is used as a verb "弘める," meaning 'to promote' or 'to spread.'