# verifiability principle

> English word · Noun

## Definitions
1. The principle, especially in 20th-century empiricism, that a statement has meaning if, and only if, either it can be verified by means of empirical observations or it is logically true by definition.

## Etymology
Coined by the philosopher Alfred Jules Ayer c. 1936.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/verifiability-principle