What is the difference between 锋利， 尖利， 锐利， 锋锐，尖锐？
锋= edge ; 利= sharp; 锋利= sharp (of edge)
Example:
刀锋锋利 blade edge is sharp

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尖= pointy; 利= sharp; 尖利= pointy and sharp
Examples:
冰錐是尖利的 ice pick is pointy and sharp
尖利的工具 (pointy and sharp tool)

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锐 = piercing; 利= sharp; 锐利 = piercingly sharp(of point)
Examples:
眼光锐利 have (piercingly) sharp eyes
锐利武器 piercingly sharp weapon

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锋= edge; 锐 = piercing; 锋锐= piercingly sharp (of edge and point)
Example:
锋锐武器 piercingly sharp weapons

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尖= pointy; 锐 = piercing; 尖锐= piercingly pointy
Example:
說話尖锐 speak in a (piercingly) pointy manner
尖锐的工具 piercingly pointy tool