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Synonyms

capstone

American  
[kap-stohn] / ˈkæpˌstoʊn /

noun

  • capstones
    plural
  1. a finishing stone of a structure.

  2. the crowning achievement, point, element, or event.


capstone British  
/ ˈkæpˌstəʊn /

noun

  1. one of a set of slabs on the top of a wall, building, etc

  2. mountaineering a chockstone occurring at the top of a gully or chimney

  3. a crowning achievement; peak

    the capstone of his career

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms


Etymology

Origin of capstone

1350–1400; Middle English. See cap 1, stone


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:

That selection, spread over the final three of the exhibition’s 10 galleries, is both the retrospective’s capstone and highlight.

From The Wall Street Journal ● Aug. 3, 2026

Then came a capstone class project to fix a company’s talent-acquisition woes.

From MarketWatch ● Jun. 22, 2026

The company passed its capstone review with the Federal Aviation Administration, allowing it to increase its 737 MAX production to 47 jets a month, Ortberg said at the Bernstein Strategic Decisions investor conference Wednesday.

From Barron's ● May 27, 2026

Her inclusion will be more than a celebration, it will be a capstone of what she’s learned from the festival.

From Los Angeles Times ● Mar. 25, 2026

The capstone was about to crumble, and when that happened, assuming she could time it correctly...

From "The Mark of Athena" by Rick Riordan

In our eagerness to treat Oscar victories as career capstones, do we pay too little attention to the opportunities that are supposed to come afterward, yet often don’t?

From New York Times ● Mar. 15, 2023

Impressive granite capstones salvaged from a tumbling wall on the property now top stately benches.

From Seattle Times ● Mar. 19, 2022

And, each year, JDC capstones a year-round effort in the Quad-Cities to improve equality, education and a community that better serves everyone.

From Washington Times ● Aug. 15, 2016

Tom Rogers' excellent design not only evokes the monumentality of the cathedral, but also, through ropes, pulleys and capstones, shows it as a vertical building site.

From The Guardian ● Nov. 12, 2012

A short distance beyond, at the end of a water-course, is an attractive hexagonal structure with niched recesses and ornamental capstones.

From England, Picturesque and Descriptive A Reminiscence of Foreign Travel by Joel Cook

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