bun

1 of 2

noun (1)

ˈbən 

1

: a sweet or plain small bread

especially : a round roll see also sticky bun

2

: a knot of hair shaped like a bun

3

buns plural : buttocks

bun

2 of 2

noun (2)

: load sense 4

Synonyms of bun

Noun (1)

• cheeks
• tail
• bum
• seat
• rump

Examples of bun in a Sentence

Noun (1)

an exercise to firm your buns

Recent Examples on the Web

Noun

The restaurant also offers bao buns, rolls, dim sum, meat and seafood, noodles, soups, rice and curry plates. — Jason Dill, Miami Herald, 28 Sep. 2026

The other is a golden circle of pull-apart cardamom buns, soaked in a concoction riffing on Swedish punsch steeped in rum, apricots and spices. — Bill Addison, Los Angeles Times, 27 Sep. 2026

Pile them onto a platter with toothpicks, or put out slider buns and let people build their own. — Danielle Bouchard, Martha Stewart, 26 Sep. 2026

And of course, the star of the show is The Fat One, which is a monster footlong hot dog topped with roasted pork, pepperoni, chili beans, cheddar cheese sauce, red onion sauce, pop fries and chives on a soft bun. — Emily Rella, PEOPLE, 25 Sep. 2026

Word History

Etymology

Noun (1)

Middle English bunne

Noun (2)

perhaps from bun entry 1

First Known Use

Noun (1)

14th century, in the meaning defined at sense 1

Noun (2)

1898, in the meaning defined above

Phrases Containing bun

• cinnamon bun
• have a bun in the oven
• iced bun
• man bun
• sticky bun

Rhymes for bun

• done
• dun
• fun
• gun
• hun
• jun
• none
• nun
• one
• pun
• run
• shun

Kids Definition

bun

noun

ˈbən

1

: a sweet or plain small bread

especially : a round roll

2

: a knot of hair shaped like a bun

Medical Definition

BUN

noun

ˌbē-ˌyü-ˈen 

: the concentration of nitrogen in the form of urea in the blood