# substantiate vs substantive

> English confusable word pair

## The two words

### substantiate
*verb · IPA /səbˈstænʃieɪt/ · frequency rank #35,963*
To verify something by supplying evidence; to authenticate or corroborate.

### substantive
*adjective · IPA /ˈsʌbstəntɪv/ · frequency rank #17,039*
Of the essence or essential element of a thing.

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