# plumb vs pump

> English confusable word pair

## The two words

### plumb
*noun · IPA /plʌm/ · frequency rank #32,124*
A little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction.

### pump
*noun · IPA /pʌmp/ · frequency rank #4,480*
A device for moving or compressing a liquid or gas.

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