to bear responsibility for something; to be liable for duties or consequences and to answer for them.
プロジェクトの失敗は私が責任を負います。
I will take responsibility for the project's failure.
部長は社員の不祥事について責任を負わなければならない場合がある。
Sometimes the manager must bear responsibility for an employee's misconduct.
会社は商品の安全性について最終的に責任を負う。
The company ultimately bears responsibility for the product's safety.
親が子供の行動に責任を負うこともある。
Parents may sometimes be held responsible for their children's actions.