A blade is the portion of a tool, weapon, or machine with an edge that is designed to puncture, chop, slice or scrape surfaces or materials.
Blades are one of humanity’s oldest tools, and continue to be used for combat, food preparation, and other purposes.
Blades work by concentrating force on the cutting edge.
A blade is a very sharp metal edge of a tool.
Knives, swords, and razors have blades, metal edges so fine and thin that they can cut and slice.
The shoulder bone is sometimes called a “shoulder blade,” and a piece of grass is also a blade.
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