noun

• (Scientology) Spiritual counseling, which forms the core of Dianetics.
  "[ Werner Erhard said:] I got a lot of benefit from auditing. It was the fastest and deepest way to handle situations that I had yet encountered."
• (obsolete) A general receptacle or receiver.
  ", "A Funeral Sermon" It [a little brook] paid to its common audit no more than the revenues of a little cloud."
• (obsolete) An audience; a hearing.
  "With his Oriſons I meddle not, for hee appeals to a high Audit."

verb

• (finance, business) To conduct an independent review and examination of system records and activities in order to test the adequacy and effectiveness of data security and data integrity procedures, to ensure compliance with established policy and operational procedures, and to recommend any necessary changes
• (Scientology) To counsel spiritually.
  "In John's case, I suspect, when he lost Diana he went back to his Scientology church to be audited."