1. (v. t.) To loose the bands of; to set free; to disunite; to scatter; to disperse; to break up the organization of; especially, to dismiss from military service; as, to disband an army.

2. (v. t.) To divorce.

3. (v. i.) To become separated, broken up, dissolved, or scattered; especially, to quit military service by breaking up organization.

break up deactivate debrief decommission demilitarize demob demobilize detach dichotomize disarm discharge disintegrate disjoin disjoint dismiss disorganize dispel disperse dissect dissever dissipate dissolve disunite diverge divide divorce go separate ways let go muster out part part company reconvert release retire scatter separate sever sheathe the sword split up sunder