the.com/blades
The sharp edge between dinner and disaster, depending entirely on whose hand it's in.
means The cutting parts of tools or weapons — or, by extension, anything flat, thin, and built to slice through something.
from From Old English blaed, meaning a leaf, since a sword's flat edge looked like blade of grass — botany before butchery.
Grass legacySame word still means a single grass leaf.
Slang turnOnce meant a dashing, swaggering young man.
Built for manyKnives, fans, propellers, ice skates, helicopters.