# sets vs SST

> English confusable word pair

## The two words

### sets
*noun · IPA /sɛts/ · frequency rank #2,088*
plural of set

### SST
*noun · frequency rank #43,385*
Initialism of supersonic transport.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/sets-vs-sst