A person responsible for keeping records or documents, such as of a business.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "bookkeeper" in a sentence
"Like the fact that the word "bookkeeper" is the only word in the English language with three sets of double letters...what is that called?"
"Certainly -- we joke about the "border upgrade," where someone who was a bookkeeper is now an accountant, and the head of accounting at a small company is now Chief Financial Officer of a much bigger company, and the AA degree becomes a BA or MBA."
"Some people use the terms bookkeeper and accountant interchangeably, but that is not technically correct."