IPA: //ˈklæk.sən//
KK: /ˈklæk.sən/
A loud horn or alarm that makes a strong sound, often used to warn people or get their attention.
The klaxon sounded, alerting everyone to evacuate the building.
Klaxon originates from the trademarked name 'Klaxon', which was used for a type of electric horn invented in the late 19th century. The name itself does not have roots in Latin, Greek, or other classical languages, but it is derived from the sound that the horn makes, which is often described as a loud, warning noise.
Imagine a loud horn that makes a distinctive sound to alert people — that's what a klaxon does.