noun
obligation of restitution; duty to return
Legal or formal term for the obligation to return something to its original owner or state, often used in contexts like international law, property, or funds.
条約により、占領地の返還義務が生じる。
Under the treaty, an obligation to return the occupied territory arises.
不正に受け取った補助金には返還義務がある。
There is an obligation to return improperly received subsidies.
Compound of 返還 (return, restoration) and 義務 (duty, obligation).