- any of a wide variety of variously shaped bread rolls, usually leavened and slightly sweetened or plain, sometimes containing spices, dried currants, etc.
- hair gathered into a round coil or knot at the nape of the neck or on top of the head in certain coiffures.
- the buttocks.
- to be intoxicated: Everyone at the party seemed to have a bun on.
- the concentration of nitrogen in the blood in the form of urea, indicating kidney function.
- a small roll, similar to bread but usually containing sweetening, currants, spices, etc
- any of various types of small round sweet cakes
- a hairstyle in which long hair is gathered into a bun shape at the back of the head
- to be pregnant
