cornerstone
Translation
cornerstone, foundation stone
Examples
The cornerstone of the building was laid today.
The cornerstone of the building was laid today.
Trust is the cornerstone of any relationship.
Trust is the cornerstone of any relationship.
Grammar Patterns
((the)) cornerstone ((of sth.)) A noun for a fundamental part. Hard work is the cornerstone of success.
Similar Words
Synonyms: foundation, basis, core, principle
Etymology
From 'corner' + 'stone'. Literally, the stone at the corner of a building's foundation, joining two walls.
Memory Tips
Think of the most important 'stone' in the 'corner' that holds everything up, both literally for buildings and figuratively for ideas.