noun
auditor
A person attending in order to listen.
An auditor attends the seminar without receiving a course grade.
Etymology
Latin audire means to hear, and -tor identifies the person performing the action. An auditor is therefore a hearer, present chiefly to listen to what is said.
More examples
- The lecturer welcomed both registered students and auditors.
- Every auditor in the hall listened closely to the final argument.
- As an auditor, she could follow the lectures without submitting assignments.
Forms
auditor · auditors