To complain; to grumble.
To say in a moan, or with a moaning voice.
To grieve.
To make a moan or similar sound.
a low, mournful cry of pain, sorrow or pleasure
To blame oneself for something; to acknowledge a fault.
To accept blame, punishment, or accountability for something within one's role or chain of command, especially when a leader protects the subordinates who caused the problem.
To accept or take on an obligation or liability.