audible

 
Pronunciation: /ˈɔːdɪb(ə)l/

adjective

  • able to be heard: some ultrasound is audible to dogs

noun

American Football
  • a change of playing tactics called by the quarterback at the line of scrimmage: he saw two safeties sneaking up and called an audible

Derivatives

audibility

Pronunciation: /-ˈbɪlɪti/
noun

audibly

adverb

Origin:

late 15th century: from late Latin audibilis, from audire 'hear'