Building

• cornerstone

  A stone at the outer corner of two intersecting masonry walls.

• cornerstone

  A stone in the exterior of a large and important building; usually carved with a date...

• foundation stone

  A stone laid at a ceremony to mark the founding of a new building.

Also contains

• paving stone

  A stone used for paving.

• whetstone

  A flat stone for sharpening edged tools or knives.

• stele

  An ancient upright stone slab bearing markings.

• capstone

  A stone that forms the top of wall or building.

• millstone

  One of a pair of heavy flat disk-shaped stones that are rotated against one another to...

• gravestone

  A stone that is used to mark a grave.

• grindstone

  A revolving stone shaped like a disk; used to grind or sharpen or polish edge tools.

• ashlar

  A rectangular block of hewn stone used for building purposes.

• hearthstone

  A stone that forms a hearth.

• springer

  The lowest stone in an arch -- from which it springs.

• monolith

  A single great stone (often in the form of a column or obelisk).