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capstone

capstone

1 6.8
A stone placed on the top of a wall or building to finish and protect it
  • noun
  • /ˈkæpˌstoʊn/
translation icon : piedra angular
  • The structure is 18 feet square and would have risen 18 feet high, with a capstone of yellow Nubian sandstone quarried from a site more than 30 miles away.

Examples

  • The angel Moroni, gold-leafed and fourteen feet high, stands on its capstone blowing his trumpet to announce that God's word has been restored to the earth.

    Fiction book (1997)
  • The capstone was placed after the foundation was solid.

    Academic text (2005)
  • Finally, a capstone was placed on top, covered with electrum and glimmering like gold.

  • A 7/8" aperture in the capstone allows a ray of sun.

    Blog text (12)
  • The capstone is raised.

    Fiction book (2001)
  • As he set the capstone in place, the face of the pyramid split in two, the two halves opening outward to reveal the single All-Seeing Eye at the pyramid's heart.

    Fiction book (1991)
  • The architect designed the building with a beautiful marble capstone that gave it a finished look.

  • At the top of the wall, the builders placed a heavy granite capstone to complete the structure.

  • The ancient temple featured a massive stone capstone that symbolized its grandeur and significance.

Synonyms

copestone
vscapstone
  • Archaic
9.9

A stone on top of a wall that protects and finishes it

is the general term for the finishing stone at the top of a wall
coping stone
vscapstone
  • Specialized
7.8

A flat stone on top of a wall that protects it from rain

refers to the same finishing piece but without weather emphasis

Compounds

A final project that shows what a student learned in a course or program

Surface Forms

capstone singular
capstones plural

Morphology

capstone = cap + stone (semi-transparent) = cap + stone

While the components 'cap' and 'stone' are clear, the specific architectural meaning of a 'finishing piece' is not immediately obvious.

Etymology

Capstone comes from the parts cap meaning 'head' or 'top' and stone meaning 'stone'. So it is literally the 'top stone' that finishes and protects a wall or building.