• synonyms


See more synonyms for capstone on Thesaurus.com
  1. a finishing stone of a structure.
  2. the crowning achievement, point, element, or event.
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Origin of capstone

1350–1400; Middle English. See cap1, stone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for capstone

top, summit, pinnacle, height, capstone, culmination, acme, apex, tip, climax, crown, apogee, meridian, head, zenith, vertex, roof, peak, crest, max

Examples from the Web for capstone

Contemporary Examples of capstone

Historical Examples of capstone

British Dictionary definitions for capstone


copestone (ˈkəʊpˌstəʊn)

  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; peakthe capstone of his career
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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

Word Origin and History for capstone


also cap-stone, topmost stone in a construction, 1680s, from cap + stone (n.). Earliest use is figurative.

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Online Etymology Dictionary, © 2010 Douglas Harper