auxiliary

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auxiliary

  • /ɔːɡˈzɪl.(j)ə.ɹi/ UK
  • /ɔːɡˈzɪl.i.ə.ɹi/ UK
  • /ɔːkˈsɪl-/ UK
  • /ɔɡˈzɪl.(jə).ɹi/ US
  • /ɔɡˈzɪl.i.ɛɹ.i/ US
  • /ɑɡˈzɪl.(jə).ɹi/ cot caught merger
  • /ɑɡˈzɪl.i.ɛɹ.i/ cot caught merger

Rhymes with -ɪliəɹi, -ɪliɛəɹi, -ɪləɹi

Where it comes from

From Latin auxiliārius (“assistant, ally”), equiv. to auxiliāris (“helping, aiding”), from auxilium (“help, aid”), from augēre (“to increase”).

adjective

  1. not comparable Helping; giving assistance or support. auxiliary troops

    Similar: ancillary, accessory

  2. not comparable Supplementary or subsidiary.

    Similar: accessory

  3. not comparable Held in reserve for exceptional circumstances.
  4. not comparable Of a ship, having both sails and an engine.

    Similar: motorsailer

  5. not comparable Relating to an auxiliary verb.

noun auxiliaries

  1. A person or group that acts in an auxiliary manner. Auxiliaries and ancillaries are comprehensive, and include a Westinghouse motor-driven recriprocating compressor used for locomotive braking and general service air, two rotary exhauster sets for train brakes when hauling passenger or fitted freight trains, and an oil-fired train heating boiler.
  2. A sailing vessel equipped with an engine.
  3. abbreviation, ellipsis Ellipsis of auxiliary verb The three traditionally recognized Non-modal Auxiliaries are the per- fective Auxiliary have, the progressive Auxiliary be, and the passive Auxiliary be. Perfective have is so-called because it marks the completion (hence, perfec- tion) of an action; it is followed by a VP headed by a perfective -n
  4. A marching band color guard.

Thesaurus

Closest in meaning: adjuvant, supportive, subsidiary, ancillary, appurtenant, aide, supplemental, supplementary, accessory, adjunct, secondary, assistance, aid, helper, supporting, aux

Translations

Every language

adj helping; giving assistance or support

한국어보조 bojo
日本語補助の hojo no
中文輔助 /辅助 fǔzhù
हिन्दीसहायक sahāyak
Portuguêsauxiliar
Deutschhelfend, unterstützend, hilfs-, auxiliar
Ελληνικάβοηθητικός voïthitikós
Русскийвспомога́тельный vspomogátelʹnyj

adj supplementary or subsidiary

Españolauxiliar
中文附属 fùshǔ
Portuguêsauxiliar
Deutschsubsidiär, unterstützend
Ελληνικάδευτερεύων defterévon, επικουρικός epikourikós
Русскийвспомога́тельный vspomogátelʹnyj, дополни́тельный dopolnítelʹnyj, запасно́й zapasnój
Tiếng Việtphụ trợ

adj held in reserve for exceptional circumstances

Portuguêsauxiliar
Deutschzurückhaltend
Ελληνικάαποθεματικός apothematikós, ανταλλακτικός antallaktikós
Русскийвспомога́тельный vspomogátelʹnyj, дополни́тельный dopolnítelʹnyj, запасно́й zapasnój

adj of a ship, having both sails and an engine

日本語補助艦艇の hojokantei no

adj relating to an auxiliary verb

日本語助動詞の jodōshi no
中文助动词 zhùdòngcí
Portuguêsauxiliar
Françaisauxiliaire
Русскийвспомога́тельный vspomogátelʹnyj

noun person or group that acts in an auxiliary manner

Españolauxiliar, ayudante
日本語補助者
Portuguêsauxiliar
DeutschHelfer, Hilfskraft
Italianoausiliare
Русскийпомо́щник pomóščnik, ассисте́нт assistént, подсо́бник podsóbnik

noun sailing vessel equipped with an engine

日本語補助艦艇

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Cite this
MLA

"auxiliary." Wiktionary, via Micwyn, micwyn.com/word/auxiliary. Accessed 6 Nov. 2026.

APA

auxiliary. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/auxiliary

Chicago

"auxiliary." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/auxiliary.

BibTeX
@misc{auxiliary_2026,
  title = {auxiliary},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/auxiliary},
  urldate = {2026-11-06}
}