A large brass instrument in the bass range, usually referring to the modern tuba or the archaic serpent

(music) A brass instrument in the baritone range that is similar to a euphonium.

A tool, usually made from an animal's horn, used to load gunpowder into a gun or cannon.

(Wicca) The second major supernatural figure in the Wiccan religion, a triune god equal to the Goddess, split into the aspects of the Father, Master, and the Sage.

(radio) A microwave antenna consisting of an open waveguide of increasing size towards the aperture

(US) A lark, Eremophila alpestris, with distinctive facial markings.

Plantago coronopus, a plant with leaves branched somewhat like the horn of a buck. / The plant Lobelia coronopifolia.

A horn-shaped pastry filled with fruit or jam and whipped cream.

Alternative form of war-horn

(chiefly historical) A blowing horn blown (especially by Vikings and other Germanic peoples) to warn others of an impending battle, and call them to it, or to signal its commencement.