• pinnicles,
• -pinnace,
• oinnaces,
• linnaces,
• -innaces,
• 0innaces,
• punnaces,
• pjnnaces,
• pknnaces,
• ponnaces,
• p9nnaces,
• p8nnaces,
• pinnzces,
• pinnsces,
• pinnwces,
• pinnqces,
• pinnaxes,
• pinnaves,
• pinnacese,
• pinneces

• pincushion,
• pinchgut,
• pinkish,
• Pincus.

The adjective form of the word "pinnaces" is "pinnacled". However, note that "pinnacled" refers to having pinnacles, not specifically to "pinnaces".