discharge someone from something
1. . to fire someone from a job. The manager discharged Walter from his position with the bank. Walter was discharged from his job.
2. to permit a person to leave a place, such as a hospital or the armed service. They discharged her from the hospital today. She was well enough to be discharged from the hospital.
discharge something from something
to fire a round from a gun. I discharged two bullets from the gun accidentally. Randy discharged about twenty rounds from his automatic rifle.