Webster's Revised Unabridged Dictionary · 1913

Audible

Audible ({not transcribed}) , adjective

[Late Latin audibilis, from Latin audire, auditum, to hear: compare Greek {not transcribed} ear, Latin auris, and English ear.]

Capable of being heard; loud enough to be heard; actually heard; as, an audible voice or whisper.

Audible , noun

That which may be heard. [Obsolete]
Visibles are swiftlier carried to the sense than audibles. — Bacon