Another person; others. A somewhat formal term often used in psychology, philosophy, and literature.
他者の意見を尊重することは社会生活で重要だ。
Respecting others' opinions is important in social life.
文学作品では、しばしば自己と他者の関係がテーマになる。
In literary works, the relationship between the self and others is often a theme.
彼は他者と協力するのが得意だ。
He is good at cooperating with others.