noun. One who keeps accounts; one whose occupation is to make a formal balanced record of pecuniary transactions in account-books.

noun. One who keeps accounts; one who has the charge of keeping the books and accounts in an office.

noun. A person responsible for keeping records or documents, such as of a business.

noun. someone who records the transactions of a business

"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?"

accountant  comptroller  controller  

accountant  amanuensis  bursar  cashier  chambermaid  

CA  CPA  abacist  accountant  accountant