In language
* Auxiliary language (disambiguation) * Auxiliary verbIn military and law enforcement
* Auxiliary police * Auxiliaries, civilians or quasi-military personnel who provide support of some kind to a military service ** Auxiliaries (Roman military)In religion
* Auxiliary bishop, in the Roman Catholic Church * Auxiliary organization (LDS Church)In technology
* Auxiliary input jack and auxiliary cable, generally for audio; frequently associated with mobile device audio * Aux-send of a mixing console * An auxiliary Port is a common port found on many Cisco routers for CLI access.Other uses
* Auxiliary route, also known as "special route", in road transportation ** An auxiliary route of the Interstate Highway System in the United States * Auxiliary ship is a naval vessel designed to operate in support of combat ships and other naval operations * Auxiliary (fraternity or sorority) * A marching band color guardSee also
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