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
Anna Kaufman, USA Today, 9 Feb. 2026
Similar to smashburgers, the secret to these is steaming the buns and onions right on the burgers.
—Jenna Sims, Southern Living, 7 Feb. 2026
The bun provides an easy grip for a veil’s comb to be cleanly tucked away.
—Shelby Wax, Vogue, 7 Feb. 2026
Chin puts her hair up in a bun, dons a shawl and essentially becomes her mother.
—Ross Raihala, Twin Cities, 6 Feb. 2026
See All Example Sentences for bun
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Noun
Her hair was pulled into a sleek low-bun and the dress was accented by a dramatic black cape and open-toed, strappy heels.
—Anna Kaufman, USA Today, 9 Feb. 2026
Similar to smashburgers, the secret to these is steaming the buns and onions right on the burgers.
—Jenna Sims, Southern Living, 7 Feb. 2026
The bun provides an easy grip for a veil’s comb to be cleanly tucked away.
—Shelby Wax, Vogue, 7 Feb. 2026
Chin puts her hair up in a bun, dons a shawl and essentially becomes her mother.
—Ross Raihala, Twin Cities, 6 Feb. 2026
See All Example Sentences for bun
Cite this Entry
“Bun.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bun. Accessed 12 Feb. 2026.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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