Delegation or entrusting: handing over authority, responsibility, or tasks to someone else (often used as '委任する').
社長は一部の権限を副社長に委任した。
The president delegated some authority to the vice president.
弁護士に訴訟の処理を委任するため、委任状に署名した。
I signed a power of attorney to entrust the lawsuit handling to a lawyer.
業務の一部を部下に委任して効率化を図る。
I delegate part of the work to subordinates to improve efficiency.