# Wac vs wis

> English confusable word pair

## The two words

### Wac
*noun · frequency rank #48,555*
A member of the Women's Army Corps, the women's branch of the United States Army from 1942-1978.

### wis
*adverb · IPA /waɪs/ · frequency rank #21,426*
Certainly, surely.

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