Category Nuances for projectile:

• actual,
• native,
• military,
• moving,
• damaging,
• ballistic,
• sophisticated,
• aerodynamic,
• explosive,
• kinetic,
• flying,
• ferromagnetic,
• prehistoric,
• real,
• airborne,
• dangerous,
• historic,
• larger,
• smooth,
• rolling,

Simple Categories for projectile:

• munition,
• item,
• surface,
• object,
• structure,
• weapon,
• entity,
• thing,
• artifact,
• craft,
• vehicle,
• missile,