1
: a sweet or plain small bread
especially
: a round roll
2
: a knot of hair shaped like a bun
3
Examples of bun in a Sentence
Noun (1)
an exercise to firm your buns
Recent Examples on the Web
Alex Beggs, Bon Appetit Magazine, 19 July 2025
Assemble burgers: Spread the mayo generously on the bottom halves of the buns.
—Gretchen McKay, Boston Herald, 15 July 2025
The restaurant’s playful take serves it slider-style, with two mini sandwiches on pillowy split-top buns from Milwaukee bakery Midwest Sad.
—Rachel Bernhard, jsonline.com, 15 July 2025
In fact, in a recent Yelp report on the best chicken sandwich in the Southern United States, Popeyes came second on the list with their crispy breading, buttery brioche bun, and spicy mayo.
—Abigail Wilt, Southern Living, 14 July 2025
See All Example Sentences for bun
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Noun
Still, these buns are somewhat sticky, so that’s a fun little mystery.
—Alex Beggs, Bon Appetit Magazine, 19 July 2025
Assemble burgers: Spread the mayo generously on the bottom halves of the buns.
—Gretchen McKay, Boston Herald, 15 July 2025
The restaurant’s playful take serves it slider-style, with two mini sandwiches on pillowy split-top buns from Milwaukee bakery Midwest Sad.
—Rachel Bernhard, jsonline.com, 15 July 2025
In fact, in a recent Yelp report on the best chicken sandwich in the Southern United States, Popeyes came second on the list with their crispy breading, buttery brioche bun, and spicy mayo.
—Abigail Wilt, Southern Living, 14 July 2025
See All Example Sentences for bun
Cite this Entry
“Bun.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bun. Accessed 25 Jul. 2025.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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