# mass vs mast

> English confusable word pair

## The two words

### mass
*noun · IPA /mæs/ · frequency rank #1,428*
Matter, material.

### mast
*noun · IPA /mɑːst/ · frequency rank #14,584*
A tall, slim post or tower, usually tapering upward, used to support, for example, sails or observation platforms on a ship, the main rotor of a helicopter, flags, floodlights, meteorological instruments, or communications equipment, such as an aerial, usually supported by guy-wires (except in the case of a helicopter).

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