mock-up
Americannoun
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mock-ups
plural
noun
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a working full-scale model of a machine, apparatus, etc, for testing, research, etc
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a layout of printed matter
verb
Other Word Forms
Noun Inflected Forms
Etymology
Origin of mock-up
First recorded in 1915–20; noun use of verb phrase mock up
Explanation
A mock-up is a smaller model or replica of something that will eventually be built or that's used for teaching. When an engineer designs a new kind of airplane, she'll first make a mock-up. A mock-up can be a prototype, or a first version of something that will be improved upon before the final version is constructed. Another kind of mock-up is a page of a newspaper or magazine that's laid out so it can be rearranged and perfected before the finished publication is printed. Some mock-ups are full size, but made of cheaper materials than the final product will use — a furniture maker might use this method.
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:
At this moment, the program doesn’t exist except in mock-up posters displayed at the Dec. 22 Mar-a-Lago announcement.
From Los Angeles Times ● Jan. 1, 2026
Some of those new technologies were on display, from a remote-controlled speedboat, zipping about in the harbour, to a mock-up of Proteus, the navy's first pilotless helicopter.
From BBC ● Dec. 7, 2025
In addition to winged Victories like that shown in the mock-up Trump’s arch, the sculptural program of the Arch of Severus includes depictions of four major battles in Parthia and the spoils of war.
From Salon ● Nov. 5, 2025
Such is the sensitivity around a nuclear exercise that none of the planes participating are actually carrying even the mock-up weapons.
From Barron's ● Oct. 21, 2025
Robin was all excited by the mock-up gliders my father built.
From "Dragonwings" by Laurence Yep
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Over the weekend he posted apparent architectural mock-ups of Corinthian columns replete with lions' heads, on the White House.
From Barron's ● Jul. 6, 2026
There were even mock-ups of unforgettable Macintosh icons like Trash, Bomb and Happy Mac.
From The Wall Street Journal ● Apr. 3, 2026
The center was also designing and testing mock-ups of a lunar lander, which Armstrong — now the center’s namesake — later used to practice landing on the moon while still here on Earth.
From Los Angeles Times ● Mar. 31, 2026
As with many other types of equipment used by the Ukrainian army, volunteers play an important role in supplying decoy mock-ups.
From BBC ● Sep. 6, 2025
Eventually I get a menial job doing mock-ups, and a small furnished two-bedroom apartment with kitchenette and separate entrance in a large crumbling house in the Annex, north of Bloor.
From "Cat's Eye" by Margaret Atwood
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Definitions 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.