1) Able to be heard 2) Actually heard 3) Aloud 4) Capable of being heard 5) Digital store owned by Amazon 6) Easily heard 7) Football play 8) French word used in English 9) Hearable 10) Line of scrimmage call 11) Loud 12) Loud enough 13) Loud enough to be heard 14) Loud enough to hear 15) Not silent 1) Aloud 2) Hearable 3) Loud 4) Perceptible 5) Sonic 
A situation whereby the quarterback changes the initially called play at the line of scrimmage by relaying the new play in coded signals. This happens when the quarterback does not like the defense he sees. Quarterbacks can either call an audible or take a timeout when this happens.
• (a.) Capable of being heard; loud enough to be heard; actually heard; as, an audible voice or whisper. • (n.) That which may be heard.
Au'di·ble adjective [ Late Latin audibilis , from Latin audire , auditum , to hear: confer Greek ... ear, Latin auris , and English ear .] Capable of being heard; loud enough to be heard; actually heard; as, an audible voice or whisper. Au'di·ble noun That which may be heard. [ Obsolete] « Visibles are swiftlier carried to the sense than audibles . Bacon. » 
[Football] verbal commands shouted by the quarterback to his teammates at the line of scrimmage to change a play on short notice.
A call at the line of scrimmage by the quarterback just prior to snapping the ball where he changes the play because the previous one would have likely been easily stopped by the defense.
(from Latin audire = to hear, to listen to) a play called by the quarterback at the line of scrimmage to change the play that was called in the huddle.
[adj] - heard or perceptible by the ear
audible 1. Loud or clear enough to be heard. 2. Capable of being heard; loud enough to be heard; actually heard.
hearable adjective heard or perceptible by the ear; `he spoke in an audible whisper`
capable of being heard; loud enough to be heard; actually heard.
[SAT terms] heard or perceptible by the ear a football play changed orally at the line of scrimmage