# pearl vs perf

> English confusable word pair

## The two words

### pearl
*noun · IPA /pɜːl/ · frequency rank #5,721*
A shelly concretion, usually rounded, and having a brilliant luster, with varying tints, found in the mantle, or between the mantle and shell, of certain bivalve mollusks, especially in the pearl oysters and river mussels, and sometimes in certain univalves. It is usually due to a secretion of shelly substance around some irritating foreign particle. Its substance is the same as nacre, or mother-of-pearl. Round lustrous pearls are used in jewellery.

### perf
*adjective · IPA /pɜː(ɹ)f/ · frequency rank #42,815*
Abbreviation of perforated; when followed by a number, eg, perf 14, this indicates the number of perforations per two centimetres.

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