Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A capstone.

from The Century Dictionary.

  • noun The upper or top stone; a stone forming part of a coping.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Arch.) A stone for coping. See coping.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun capstone

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a final touch; a crowning achievement; a culmination
  • noun a stone that forms the top of wall or building

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[cope + stone.]

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