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

Advertisement For some fiber along with fatty fish, pair it with salad, other veggies, or whole-grain buns, Petersen suggests. — Matt Fuchs, Time, 26 June 2026

The model wore her hair in an effortless bun and added nothing but reflective shades. — Christina Perrier, InStyle, 26 June 2026

This includes tight ponytails and buns, and aggressive hair washing practices, such as using drying shampoo. — Parents, 25 June 2026

Kalua pork bao buns (left) and pineapple buns (right) prepared by Sara Siv and Jess Gorsuch, owners of Hapa Kitchen, at Block & Drum in Chamblee on Wednesday, June 17, 2026. — Kaitlyn Harvey, AJC.com, 24 June 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