1
: a sweet or plain small bread
especially
: a round roll
2
: a knot of hair shaped like a bun
3
Synonyms
Noun (1)
Examples of bun in a Sentence
Noun (1)
an exercise to firm your buns
Recent Examples on the Web
Lori A Bashian Fox News, Fox News, 1 Feb. 2025
Kim’s hair was pulled back into a low messy bun, with a few strands of hair to frame her face.
—Julia Teti, WWD, 28 Jan. 2025
And since then, followers have come in droves, flooding her feed with comments praising her cakes, casseroles, pies, and buns.
—Hannah Taylor, Southern Living, 24 Jan. 2025
The menu: Pastries galore, speciality sandwiches — served on either a bagel, focaccia, loaf or brioche bun — and a daily, rotating offering of fresh breads.
—Meira Gebel, Axios, 21 Jan. 2025
See all Example Sentences for bun 
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Noun
The star wore her hair in a low bun with a few strands left out to frame her face.
—Lori A Bashian Fox News, Fox News, 1 Feb. 2025
Kim’s hair was pulled back into a low messy bun, with a few strands of hair to frame her face.
—Julia Teti, WWD, 28 Jan. 2025
And since then, followers have come in droves, flooding her feed with comments praising her cakes, casseroles, pies, and buns.
—Hannah Taylor, Southern Living, 24 Jan. 2025
The menu: Pastries galore, speciality sandwiches — served on either a bagel, focaccia, loaf or brioche bun — and a daily, rotating offering of fresh breads.
—Meira Gebel, Axios, 21 Jan. 2025
See all Example Sentences for bun
Dictionary Entries Near bun
Cite this Entry
“Bun.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bun. Accessed 8 Feb. 2025.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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