pronoun
Standard third-person masculine pronoun. Used for males in both spoken and written Japanese. Can sound blunt or literary when used directly to address someone; in conversation, names or titles are often preferred.
See also: 彼女
彼は私の兄です。
He is my older brother.
昨日、彼に会いました。
I met him yesterday.
noun
Informal noun meaning 'boyfriend'. Often used with possessive 私の or in contexts where the romantic relationship is clear. 彼氏 is a more common and unambiguous term for 'boyfriend'.
See also: 彼氏
彼ができたんだって。
I heard she got a boyfriend.
週末は彼とデートです。
I have a date with my boyfriend this weekend.
Originally from the demonstrative root か (that) + れ (nominalizer). The kanji 彼 is a Chinese loan character used for its meaning 'that' or 'he'.