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 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

Anna, in a cardigan and a messy bun, has ordered a box of editions of The Ladder, a magazine launched in the fifties, published by the first lesbian-rights organization in the United States. —Naaman Zhou, New Yorker, 6 Apr. 2026

Diners can also snack on shareable plates like dumplings and bao buns. —Connie Ogle, Miami Herald, 6 Apr. 2026

To join then-mayor of New York City, Bill de Blasio, and Governor Kathy Hochul on the One World Trade Center's observation deck, Meghan sported a sharp black and navy ensemble with her hair elegantly tied in a neat bun. —Katherine J Igoe, InStyle, 3 Apr. 2026

These sugar buns are reminiscent of cinnamon rolls, except the cinnamon sugar is pressed onto the outsides of the buns. —Victoria Spencer, Martha Stewart, 3 Apr. 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

• have a bun in the oven
• iced 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