Definition of "Surrender" :
noun: the act of surrendering (usually under agreed conditions)
noun: the delivery of a principal into lawful custody
noun: a verbal act of admitting defeat
noun: acceptance of despair
verb: give up or agree to forgo to the power or possession of another
"The last Taleban fighters finally surrendered."
verb: relinquish possession or control over
"The squatters had to surrender the building after the police moved in."