klaxon
1 synonym for klaxon, grouped by meaning and by how common each one is.
Noun — A loud electric horn or alarm, especially the type once used on early cars and emergency vehicles.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Etymology
Originally a trademark, from a Greek verb meaning "to make a sharp sound." An American manufacturer registered it in the early 1900s for the loud horns fitted to early automobiles, and the name eventually became a generic word for any similar alarm.
Full origin of klaxon →