noun / verb
horn
A hollow instrument that projects a loud sound.
The driver sounds the horn to warn nearby cyclists.
Etymology
An animal’s horn could be hollowed and used to produce a loud signal. Its name extended to other sound-producing instruments and devices serving a similar purpose.
More examples
- She squeezes her bicycle horn as she approaches the corner.
- A ship's horn echoes across the harbor.
- He plays the horn in the school band.
Forms
horn · horns · horned · horning