# IB vs IV

> English confusable word pair

## The two words

### IB
*noun · frequency rank #16,046*
An International Baccalaureate program

### IV
*adjective · IPA /ˌaɪ ˈviː/ · frequency rank #3,762*
Abbreviation of intravenous.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/ib-vs-iv