1. hard pointed growths on the heads of certain animals such as cattle, goats, or rhinoceroses
2. musical instruments made of brass or other materials that produce sound when blown
3. devices that make loud warning sounds, especially on vehicles

Examples

• The bull lowered its horns and charged at the matador.
• She played the French horns in the school orchestra.
• The driver honked his horns to warn the pedestrians.
• The Viking helmet had curved horns on both sides.
• The rhinoceros used its horns to defend its territory.
• The trumpet player polished his horns before the concert.
• Car horns blared loudly during the traffic jam.