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
Ramona Sentinel, San Diego Union-Tribune, 24 June 2025
The star kept the rest of her look minimal, and slicked her brunette hair back into a low bun with a long piece left out to frame her face.
—Starr Bowenbank, People.com, 23 June 2025
The bun is now made at the restaurant, a cross between a brioche and a potato roll.
—Jenn Harris, Los Angeles Times, 12 June 2025
The tavern burger had a thick patty cooked to a perfect medium rare and a heap of pickles sandwiched between a Balthazar bun.
—Kaitlyn Rosati, New York Daily News, 11 June 2025
See All Example Sentences for bun
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Noun
Thursday, July 3, Independence Day Celebration, Hot Dog with onion and a whole grain bun, fries, Mandarin oranges, milk.
—Ramona Sentinel, San Diego Union-Tribune, 24 June 2025
The star kept the rest of her look minimal, and slicked her brunette hair back into a low bun with a long piece left out to frame her face.
—Starr Bowenbank, People.com, 23 June 2025
The bun is now made at the restaurant, a cross between a brioche and a potato roll.
—Jenn Harris, Los Angeles Times, 12 June 2025
The tavern burger had a thick patty cooked to a perfect medium rare and a heap of pickles sandwiched between a Balthazar bun.
—Kaitlyn Rosati, New York Daily News, 11 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 1 Jul. 2025.
Copy CitationMedical Definition
BUN
noun
: the concentration of nitrogen in the form of urea in the blood
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