# bulletproof

> English word · Adjective · IPA /ˈbʊl.ɪtpɹuːf/ · frequency rank #20,866

## Definitions
1. Capable of withstanding a direct shot by a bullet fired from a gun.
2. Reliable, infallible, sturdy or error-tolerant.

## Etymology
From bullet + -proof.

## Common misspellings (15)
`bbulletproof`, `bluletproof`, `buleltproof`, `buletproof`, `bulleptroof`, `bulletporof`, `bulletpproof`, `bulletprof`, `bulletprofo`, `bulletprooff`, `bulletprroof`, `bulletrpoof`, `bullettproof`, `bullteproof`, `ublletproof`

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