horn
The word carries a strong sensory association with loudness and protrusion. When used as a noun, it evokes a physical sharpness or a piercing auditory signal, creating a link between the biological weapon of an animal and the mechanical alarm of a car.
As a verb, the term shifts toward a social transgression. It suggests a clumsy or aggressive intrusion, mimicking the way an animal might use its head to shove others aside to get what it wants. This gives the action a slightly rude or opportunistic connotation.
Countable when referring to the physical object on an animal, a musical instrument, or a car part.
Meanings
A hard permanent outgrowth on the head of certain mammals.
The rhino has a massive horn.
A tubular musical instrument that produces sound via lip vibration.
He played a brass horn in the orchestra.
Phrasal Verbs
horn in
to force one's way into a conversation or situation
She tried to horn in on the private meeting.