cornerstone

/kˈɔɹnɚstˌoʊn/ · 3 syllables

Meaning

noun

1. the fundamental assumptions from which something is begun or developed or calculated or explained
   “the whole argument rested on a basis of conjecture”
2. a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies
3. a stone at the outer corner of two intersecting masonry walls

Synonyms for cornerstone

• basis
• base
• foundation
• fundament
• groundwork

Words that rhyme with cornerstone

• stone
• tone
• unknown
• drone
• alone
• bone
• zone
• backbone
• cone
• throne
• baritone
• clone
• monotone
• phone
• hone
• intone
• loan
• lone
• millstone
• roan
• telephone
• undertone
• anemone
• atone
• blown
• brownstone
• capstone
• chaperone
• cherrystone
• cobblestone