# slip up

> English word · Verb

## Definitions
1. To err, falter; to make a mistake, especially a seemingly small error.
2. To lose ones footing; to slip.

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