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Definition of bun
bun
/bʌn/
bun
Plural:buns
bun Lexical Profile
CEFR
A2
Grade
2
Tier
1
Usage
Top 5k
bun Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A small, typically round bread roll, which can be sweet or savory, often used to hold a hamburger, hot dog, or sandwich fillings.
Example
"She bought a pack of sesame seed buns for the family barbecue."
2
A hairstyle in which the hair is pulled back and gathered into a tight coil or knot at the back or top of the head.
Example
"The ballerina tied her hair into a neat bun before stepping onto the stage."
3
An informal term, almost exclusively used in the plural, referring to the human buttocks.
Example
"He spent months at the gym doing squats to build strength in his legs and buns."
Synonyms
View all synonyms for bun Antonyms
View all antonyms for bun• Rhymes for bun
Word Origin & Etymology
Late Middle English, of unknown origin; perhaps related to Old French 'bugne' meaning 'swelling' or 'bump', or of Celtic origin.
Cite this Entry
Wordmom. (2026). Definition of Bun. In Wordmom Dictionary. Retrieved Oct 15, 2026, from https://wordmom.com/dictionary/bun