The main constituent or core entity of something; the principal actor or group at the center of an organization or activity.
若者が地域活動の主体となっている。
Young people are the main driving force of community activities.
企業は従業員を主体とした改革を進めている。
The company is promoting reforms centered on its employees.
文化祭の主体は学生だが、先生も協力する。
Students are the main organizers of the school festival, but teachers also cooperate.
In philosophy, the 'subject'—an agent or conscious standpoint—used in contrast to the object (客体).
現象学では主体と客体の関係が重要なテーマだ。
In phenomenology, the relationship between subject and object is an important theme.
自我を主体として捉える考え方がある。
There is an approach that regards the ego as the subject.