# IQ vs IV

> English confusable word pair

## The two words

### IQ
*noun · IPA /ˌaɪ ˈkjuː/ · frequency rank #11,406*
Initialism of intelligence quotient.

### 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/iq-vs-iv