OWN

See: COME INTO ONE'S OWN, DOSE OF ONE'S OWN MEDICINE, HOLD ONE'S OWN, IN A WORLD OF ONE'S OWN, KEEP ONE'S OWN COUNSEL, OF ONE'S OWN ACCORD or OF ONE'S OWN FREE WILL, ON ONE'S OWN ACCOUNT or ON ONE'S OWN HOOK, ON ONE'S OWN TIME, SIGN ONE'S OWN DEATH WARRANT, TAKE THE LAW INTO ONE'S OWN HANDS, UNDER ONE'S OWN STEAM.