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copestone (ˈkəʊpˌstəʊn Pronunciation for copestone

Definitions

noun

  1. Also called: coping stone. a stone used to form a coping
  2. Also called: capstone. the stone at the top of a building, wall, etc

capstone (ˈkæpˌstəʊn Pronunciation for capstone or copestone (ˈkəʊpˌstəʊn Pronunciation for copestone

Definitions

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

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