Horn
/hɔːn/
noun
A hard growth of keratin that protrudes from the top of the head of certain animals, usually paired.
Any similar real or imaginary growth or projection such as the elongated tusk of a narwhal, the eyestalk of a snail, the pointed growth on the nose of a rhinoceros, or the hornlike projection on the head of a demon or similar.
An antler.
Synonyms: blower (UK), dog and bone (Cockney rhyming slang), phone, boner (US), hard-on, stiffy, funnel, hooter
verb
(of an animal) To assault with the horns.
To furnish with horns.
To cuckold.