Auditor

1. a. One who hears judicially, as in an audience court.
2. a. A hearer or listener.
3. a. A person appointed and authorized to audit or examine an account or accounts, compare the charges with the vouchers, examine the parties and witnesses, allow or reject charges, and state the balance.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.