Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “bun”

bun

noun [C]     /bʌn/
CAKE UK B2 a small, round cake: an iced bunCakes
BREAD B2 a small, round piece of bread: a hamburger/hot cross bunBread
HAIR a hairstyle in which the hair is arranged in a small, round shape on the back of the headHairstyles
(Definition of bun noun from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “bun” in other dictionaries

Word of the Day

friendship

a situation in which two people are friends

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More