Definition of "auxiliary" []

• Giving assistance or support; helping. (adjective)
• Acting as a subsidiary; supplementary: the main library and its auxiliary branches. (adjective)
• Held in or used as a reserve: auxiliary troops; an auxiliary power generator. (adjective)
• Nautical Equipped with a motor as well as sails. (adjective)
• Grammar Of, relating to, or being an auxiliary verb. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Headquarters: the U.S. Chamber of Commerce, with main auxiliary clubhouses in Dallas and Houston."
• "Because certain auxiliary equipment is lacking, the model owned by the DPRK is considered by experts to be incapable of achieving the level of quality seen on supernotes."
• "They declared their inclusion, besides men, and not just in auxiliary services but armed at the front line."