# sig vs SM

> English confusable word pair

## The two words

### sig
*noun · IPA /sɪɡ/ · frequency rank #20,497*
A signature, especially one on emails or newsgroup postings.

### SM
*noun · frequency rank #11,123*
Initialism of service module.

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