capable of being heard; loud enough to be heard; actually heard.
Origin of audible
1520–30; < Late Latin audībilis, equivalent to Latin audī(re) to hear + -bilis -ble
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
perceptible to the hearing; loud enough to be heard
American football a change of playing tactics called by the quarterback when the offense is lined up at the line of scrimmage
Word Origin for audible
C16: from Late Latin audibilis, from Latin audīre to hear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1520s, from Middle French audible and directly from Late Latin audibilis, from Latin audire "to hear," from PIE *awis-dh-yo-, from root *au- "to perceive" (see audience). Related: Audibly.
Online Etymology Dictionary, © 2010 Douglas Harper