One who renders account; one accountable.
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 whose profession includes organizing, maintaining and auditing the records of another. The records are usually, but not always, financial records.
One who is skilled in, keeps, or adjusts, accounts; an officer in a public office, who has charge of the accounts.
A move in opposition or response to a preceding move.
To move in opposition or in retaliation.