American Heritage Dictionary
(4)
Century Dictionary
(4)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
The menu claimed the bun was a poppyseed bagel, and while it was bagel-shaped— The Food Pornographer
The bun was a standard issue hamburger bun, the same as you'd purchase at the supermarket.— mmm-yoso!!!
Which reminds me of that Victoria Wood thing about the Meat Lovers 'burger being a burger and no bun, a vegetarian burger is a bun and no burger and the Introverts' burger, which is just a serviette, but you didn't like to say.— keris stainton

American Heritage Dictionary (3)
Century Dictionary (2)
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