Pheon is a heraldic term used to describe a type of arrowhead commonly used in the Middle Ages. Synonyms for Pheon include arrowhead, dart, bolt, projectile, shaft, and quarrel. These words have been used throughout history to describe different types of weapons used in battle, but all share a common purpose of piercing through armor or other barriers. Arrowheads were commonly used in archery and hunting, while darts and bolts were used in siege warfare. Today, these synonyms are still used to describe different types of projectiles in modern weapons, such as guns and missiles.