One who is skilled in, keeps, or adjusts, accounts; an officer in a public office, who has charge of the accounts.
A sex worker, particularly one who does not want to be publicized as one
A reckoner, or someone who maintains financial matters for a person(s).
One who renders account; one accountable.
One whose profession includes organizing, maintaining and auditing the records of another. The records are usually, but not always, financial records.
The person responsible for handling the accounts on a ship, or for dealing with the passengers on a ship or aircraft.