au·di·ble / ˈôdəbəl/ • adj. able to be heard: ultrasound is audible to dogs.• n. Football a change in the offensive play called by the quarterback at the line of scrimmage.DERIVATIVES: au·di·bil·i·ty / ˌôdəˈbilitē/ n.au·di·bly / -blē/ adv.

audible XVI. — late L. audībilis, f. audīre hear; see -IBLE.
So audience XIV. — (O)F. audit sb. XV. — L. audītus hearing, f. audīt-, pp. stem of audīre. Hence audit vb. XV. audition XVI. — L. auditor XIV. -AN. auditour, (O)F. auditeur — L. audītor, -ōr-. auditorium XVIII, earlier auditory XIV. — L.