THESAURUS
trusteeship
agency, agentship, assignment, authority, authorization, brevet, care, charge, commission, commissioning, commitment, consignment, cure, delegated authority, delegation, deputation, devolution, devolvement, embassy, empowerment, entrusting, entrustment, errand, executorship, exequatur, factorship, full power, jurisdiction, legation, license, lieutenancy, mandate, mission, office, plenipotentiary power, power of attorney, power to act, procuration, proxy, purview, regency, regentship, responsibility, task, trust, vicarious authority, warrant