AUDIBLE
audible, hearable
(adjective) heard or perceptible by the ear; “he spoke in an audible whisper”
audible
(noun) a football play is changed orally after both teams have assumed their positions at the line of scrimmage
Source: WordNet® 3.1
Etymology
Adjective
audible (comparative more audible, superlative most audible)
Able to be heard.
Synonyms
• sounded
• vocal
Antonyms
• inaudible
• quiet
• silent
Verb
audible (third-person singular simple present audibles, present participle audibling, simple past and past participle audibled)
(intransitive, American football) To change the play at the line of scrimmage by yelling out a new one.
Noun
audible (plural audibles)
(American football) The act of or an instance of changing the play at the line of scrimmage by yelling out a new one.
Source: Wiktionary
Au"di*ble, a. Etym: [LL. audibilis, fr. L. audire, auditum, to hear:
cf. Gr. auris, and E. ear.]
Definition: Capable of being heard; loud enough to be heard; actually
heard; as, an audible voice or whisper.
Au"di*ble, n.
Definition: That which may be heard. [Obs.]
Visibles are swiftlier carried to the sense than audibles. Bacon.
Source: Webster’s Unabridged Dictionary 1913 Edition