1. A kind of loud horn formerly used on motor vehicles
   "The ship's klaxon sounded, warning of the approaching fog";
   - claxon

1. Use the horn of a car
   "He klaxoned loudly at the cyclist";
   - honk, claxon, parp [informal]
    
2. Make a strident noise
   "The horns of the taxis klaxoned";
   - honk, blare, beep, claxon, toot, parp [informal]

Derived forms: klaxoned, klaxoning, klaxons

Type of: go, horn, make noise, noise, resound, sound

Encyclopedia: Klaxon