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Definition of bastion
bastion
/ˈbæstiən/
bas · tion
Plural:bastions
•Adjective:bastioned
bastion Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
2
bastion Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
An institution, place, or person strongly defending or upholding particular principles, attitudes, or activities.
Example
"The historic university has long served as a bastion of academic freedom and independent thought."
2
A projecting part of a fortification built at an angle to the line of a wall, allowing defensive view and protection in several directions.
Example
"Tourists walked along the stone bastion of the sixteenth-century coastal fortress to admire the harbor."
Synonyms
View all synonyms for bastion Antonyms
View all antonyms for bastion• Nearby Words
Word Origin & Etymology
Borrowed in the late 16th century from French 'bastion', from Italian 'bastione', derived from Old Italian 'bastire' ('to build'), which is of Germanic origin and related to the word 'baste'.
Cite this Entry
Wordmom. (2026). Definition of Bastion. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/bastion