Definition for Cornerstone:

• a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies

Synonyms for Cornerstone:

• n.

  •
  • addition,
  • body.
  •
  • priority,
  • essence,
  • key,
  • feature,
  • core,
  • over,
  • staple,
  • element,
  • concern.
  •cognition (noun)
  • base,
  • foundation,
  • groundwork,
  • fundament,
  • basis.
  •groundwork (noun)
  • understructure.
  •keystone (noun)
  • quoin.

Holonyms for Cornerstone:

• n.

  • artifact
    building, edifice.
  • cognition
    explanation.

Hypernym for Cornerstone:

• n.

  • cognition
    meat and potatoes.

Hyponym for Cornerstone:

• n.

  • artifact
    stone.
  • cognition
    assumption, supposal, supposition.