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
Lea Donenberg, Vogue, 19 Dec. 2025
The Krabby Whopper, inspired by the show’s Krabby Patty, comes on a yellow, square bun.
—Erin Clements, PEOPLE, 18 Dec. 2025
In fact, one of my most vivid memories was sitting between my mother’s legs getting my hair brushed, tugged, and pulled into a low, sleek bun for my track meets.
—Essence, 18 Dec. 2025
Longhorn bacon burger on a pretzel bun.
—Ella Gonzales, Fort Worth Star-Telegram, 17 Dec. 2025
See All Example Sentences for bun
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Noun
The weekend kicked off with a not-so-traditional Shabbat dinner at Fellow Mountain Cafe, the Catskills hot-spot known for its viral cinnamon buns.
—Lea Donenberg, Vogue, 19 Dec. 2025
The Krabby Whopper, inspired by the show’s Krabby Patty, comes on a yellow, square bun.
—Erin Clements, PEOPLE, 18 Dec. 2025
In fact, one of my most vivid memories was sitting between my mother’s legs getting my hair brushed, tugged, and pulled into a low, sleek bun for my track meets.
—Essence, 18 Dec. 2025
Longhorn bacon burger on a pretzel bun.
—Ella Gonzales, Fort Worth Star-Telegram, 17 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 21 Dec. 2025.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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