bun

1 of 2

noun (1)

ˈbən 

1

: a sweet or plain small bread

especially : a round roll

2

: a knot of hair shaped like a bun

3

buns plural : buttocks

bun

2 of 2

noun (2)

: load sense 4

Synonyms

Noun (1)

• backside
• behind
• booty [slang]
• bootie
• bottom
• breech
• bum
• butt
• buttocks
• caboose
• can
• cheeks
• derriere
• derrière
• duff
• fanny
• fundament
• hams
• haunches
• heinie [slang]
• hunkers
• keister [slang]
• keester
• nates
• posterior
• rear
• rear end
• rump
• seat
• tail
• tail end
• tush [slang]

Examples of bun in a Sentence

Noun (1)

an exercise to firm your buns

Recent Examples on the Web

Noun

Avoid pulling on your hair with tight buns or ponytails or over-processing your hair (with coloring, straightening, or other treatments). —Stacey Colino, TIME, 12 July 2024

Here’s where to grab a bag of hamburger buns or extra potato chips. —Bychris Morris, Fortune, 4 July 2024

Chaos rules the land as unrestrained libidos, feuding ruling parties, power-mad politicos and unexpected disasters such as deadly rainstorms muck things up for Frank (voice of Seth Rogen), a sausage; Brenda (Kristen Wiig), a bun; and Barry (Michael Cera), a hot dog. —Randy Myers, The Mercury News, 10 July 2024

That plan has competitors stick half a hot dog in their mouths while dipping the other half — bun and all — into water before shoving that half down too. —Brian Niemietz, New York Daily News, 4 July 2024

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

• have a bun in the oven
• sticky bun

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