# interfered vs interferon

> English confusable word pair

## The two words

### interfered
*verb · IPA /ˌɪntɚˈfɪɹd/ · frequency rank #22,123*
simple past and past participle of interfere

### interferon
*noun · IPA /ˌɪn.təˈfɪːˌɒn/ · frequency rank #38,912*
Any of a group of glycoproteins, produced by the immune system, that prevent viral replication in infected cells.

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