axiom
A self-evident truth requiring no proof
Examples
In a meeting
“It's an axiom in our industry that customer retention costs less than acquisition.”
Over coffee
“It's basically an axiom that you get what you pay for.”
Why this word
principle
axiom is a self-evident truth requiring no proof, while principle is a general rule that may need justification
truth
axiom is a foundational statement accepted without proof in a logical system, while truth is any accurate statement
rule
axiom is an unprovable starting assumption in formal systems, while rule is a prescribed guideline or regulation
Usage tip
Use when referring to foundational principles or universally accepted truths in your field. Strongest when establishing baseline assumptions.
Etymology
Greek 'axioma' meaning 'that which is thought worthy or fit'
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Related words
synthesis
The combining of separate elements to form a coherent whole
syllogism
A logical argument with two premises leading to a conclusion
empiricism
The belief that knowledge comes from observation and experience
paradox
A seemingly contradictory statement that may nonetheless be true
premise
An underlying assumption on which reasoning is based
dogma
A principle or belief accepted without question