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
Hannah Sacks, People.com, 11 June 2025
The burger was familiar, a compact concoction of meat, cheese and bun that chef Matt Molina first introduced at Everson Royce Bar a decade prior.
—Jenn Harris, Los Angeles Times, 9 June 2025
The Academy Award-winning actress wore her hair in an elegant updo, opting for a low bun with a few strands let out to frame one side of her face.
—Lori A Bashian, FOXNews.com, 7 June 2025
The burgers are pressed, seared and served on buns that are lightly buttered.
—Saleen Martin, USA Today, 4 June 2025
See All Example Sentences for bun
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Noun
Her blonde hair was styled into a sleek bun and covered by a nude head wrap.
—Hannah Sacks, People.com, 11 June 2025
The burger was familiar, a compact concoction of meat, cheese and bun that chef Matt Molina first introduced at Everson Royce Bar a decade prior.
—Jenn Harris, Los Angeles Times, 9 June 2025
The Academy Award-winning actress wore her hair in an elegant updo, opting for a low bun with a few strands let out to frame one side of her face.
—Lori A Bashian, FOXNews.com, 7 June 2025
The burgers are pressed, seared and served on buns that are lightly buttered.
—Saleen Martin, USA Today, 4 June 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 16 Jun. 2025.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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