Cape Horn, at the southern tip of South America. / The Horn of Africa, a peninsula of Africa which juts into the Arabian Sea.

(transitive, of an animal) To assault with the horns. / (transitive) To furnish with horns. / (transitive, slang, obsolete) To cuckold.

(countable) A hard growth of keratin that protrudes from the top of the head of certain animals, usually paired.

A surname. / A former civil parish in Rutland, England, abolished in 2016 on the formation of Exton and Horn parish.

(idiomatic) On the telephone.

(slang) To intrude or butt in (on something).

present participle of horn

The activity of blowing the horn of a train. / The appearance of the Moon when increasing, or in the form of a crescent.

Third-person singular simple present indicative form of horn

plural of horn