Basis
Synonyms: Foundation, Core, Root, Starting point, Underpinning, Base, Reason, Platform, Anchor, Grounds, Fundamentals, Cause, Pillar, Matrix, Motive, Crux, Nexus, Benchmark, Groundwork, Principle, Source, Framework, Structure, Rationale, Premise, Bedrock, Support, Cornerstone, Origin, Essential, Substructure, Justification, Center, Focus, and Standard.
Example Sentences
Their friendship formed the basis.
Trust is the basis here.
He works on a daily basis.
The basis of success is persistence.