1. The area, domain, or range of authority, responsibility, or expertise within which a person, organization, or institution has the right and duty to act or make decisions
It is within the sphere of competence of the judicial system to interpret the law.
É dentro da esfera de competência do poder judiciário interpretar a lei.
2. The limits of one's knowledge, skills, or authority in a particular field
Financial matters fall outside the sphere of competence of this department.
Questões financeiras estão fora da esfera de competência deste departamento.