auditor

One who audits bookkeeping accounts.

In many jurisdictions, an elected or appointed public official in charge of the public accounts; a comptroller.

One who audits an academic course; who attends the lectures but does not earn academic credit.

One who listens, typically as a member of an audience.

There is another of better notice, and whispered through the world with some attention; credulous and vulgar auditors readily believing it, and more judicious and distinctive heads not altogether rejecting it.

Thus (as you will see with half an eye, my wise little auditors) these good old dames had fallen into a strange perplexity.

One trained to perform spiritual guidance procedures.