Find the word!

What is the English word contains three successive Double letters?
For a hint, it starts with "B"

Thanks

BOOKKEEPER is the word

Rakhi, if you have something substantial to share or similar, only then you can create such threads. This particular question is freely floating around the net and does not really add much value so I am requesting you to refrain from creating such threads that are mere copy-paste from other sites. Thanks!