ancillary
Americanadjective
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subordinate; secondary; subsidiary.
Your medical coverage includes physiotherapy, eye testing, and other ancillary services.
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auxiliary; assisting.
The bookkeeper serves in an ancillary role, supporting the treasurer.
noun
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ancillaries
plural
adjective
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subsidiary
-
auxiliary; supplementary
ancillary services
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of ancillary
First recorded in 1660–70; from Latin ancillāris “having the status of a handmaid or female servant” + -ary adjective suffix; see origin at ancilla, -ary
Explanation
If you use the adjective ancillary to describe your position you are subordinate or supporting something or someone else. The adjective ancillary originally meant "relating to maidservants" from the Latin, but the element of a female servant has fallen away and now the word merely refers to a position as helpful or subordinate. An example of how something in medicine can be ancillary is after you have surgery you may also take a drug to aid healing — the drug would be considered ancillary to the surgery. One could also argue that in the United States the vice-president takes an ancillary role to the president.
Vocabulary lists containing ancillary
The Absolutely True Diary of a Part-Time Indian
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"The Mosquito Solution," Vocabulary from the science article
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2015 National Spelling Bee Words
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
“Even with respectable ancillary income based on the film’s pedigree, the movie is going to lose a lot of money,” David A. Gross wrote in his FranchiseRe movie industry newsletter shortly after the film’s opening.
From Los Angeles Times ● Oct. 12, 2026
There are also some ancillary fees which reached clubs whom Manchester City did not deal with directly.
From BBC ● Oct. 2, 2026
Many of these ancillary items, strategically placed among approximately 140 Van Herpen designs, have inspired the couturier.
From The Wall Street Journal ● Sep. 19, 2026
A Starbucks spokesperson told MarketWatch the company increasingly sees its ancillary offerings — like cups and other gear — as collectibles.
From MarketWatch ● Sep. 19, 2026
Another belt ancillary to this began in western Massachusetts and extended along the Erie Canal to Buffalo, thence to Cleveland, Detroit, and Chicago.
From Expansion and Conflict by William E. Dodd
There were huge ancillaries at stake, including a big new TV contract to be negotiated next year.
From Washington Post ● Apr. 1, 2023
Still BG’s salary for half a year’s work puts her in the top 5% of U.S. earners, not counting ancillaries.
From Los Angeles Times ● May 14, 2022
Through our Community Hubs, instructors can upload their own materials or download resources to use in their own courses, including additional ancillaries, teaching material, multimedia, and relevant course content.
From Textbooks ● Dec. 21, 2021
On June 22, 2016, Harris Corp. received $1.7 billion for "radios, ancillaries, spare parts and services."
From Salon ● Aug. 22, 2021
Of these 67, 32 were pottery vessels and 12 were ceramic ancillaries.
From Mohave Pottery by Michaell J. Harner
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.