# bastion

> English word · Noun · IPA /ˈbæsti.ən/ · frequency rank #19,269

## Definitions
1. A projecting part of a rampart or other fortification.
2. A well-fortified position; a stronghold or citadel.
3. A person, group, or thing, that strongly defends some principle.
4. Any large prominence; something that resembles a bastion in size and form.

## Etymology
First attested in 1562. From French bastion, from Old French bastille (“fortress”).

## Easily confused with
- **baton** (https://plainspell.com/en/vs/bastion-vs-baton)
- **Boston** (https://plainspell.com/en/vs/bastion-vs-boston)
- **basin** (https://plainspell.com/en/vs/basin-vs-bastion)
- **Barton** (https://plainspell.com/en/vs/barton-vs-bastion)
- **Baskin** (https://plainspell.com/en/vs/baskin-vs-bastion)
- **Bastian** (https://plainspell.com/en/vs/bastian-vs-bastion)

## Common misspellings (11)
`abstion`, `basiton`, `bassion`, `basstion`, `bastino`, `bastionn`, `bastoin`, `basttion`, `batsion`, `bbastion`, `bsation`

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