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
Lydia Mansel, Travel + Leisure, 28 Dec. 2025
Christmas morning brings a delivery of warm cinnamon buns, followed by meals at your choice of the property’s dining spots.
—Wendy O'Dea, Robb Report, 28 Dec. 2025
Her updo featured an adorably imperfect bun, with loops and loose ends, secured lower on the back of her head.
—Marci Robin, Allure, 26 Dec. 2025
Shred your pork and serve it on buns with slaw, or even use it as a taco filling.
—Jenna Sims, Southern Living, 25 Dec. 2025
See All Example Sentences for bun
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Noun
Skogen Kitchen, helmed by owners Joseph and Eliza Raney, is the perfect way to celebrate the end of your Custer State Park adventure—toast over Japanese A5 Wagyu, lobster steam buns, and bluefin tuna sashimi.
—Lydia Mansel, Travel + Leisure, 28 Dec. 2025
Christmas morning brings a delivery of warm cinnamon buns, followed by meals at your choice of the property’s dining spots.
—Wendy O'Dea, Robb Report, 28 Dec. 2025
Her updo featured an adorably imperfect bun, with loops and loose ends, secured lower on the back of her head.
—Marci Robin, Allure, 26 Dec. 2025
Shred your pork and serve it on buns with slaw, or even use it as a taco filling.
—Jenna Sims, Southern Living, 25 Dec. 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 29 Dec. 2025.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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