Discharge

放電

hōden

(act of releasing an accumulated charge)

免じる

menjiru

(to expel or let go)

全うする

mattō suru

(to accomplish or complete, as an obligation)

発射する

hassha-surú

(to operate (any weapon that fires a projectile, such as a shotgun or sling))

退院させる

tai'in saseru

(medicine: to release (an inpatient) from hospital)