blade
//bleɪd//
Noun
bladeSingular
bladesPlural
1
The flat, sharp-edged cutting part of a knife, sword, or other tool or weapon.
Be careful, the blade of this knife is very sharp.
2
A thin, flat part of a plant, especially a leaf of grass or the broad part of a leaf.
A single blade of grass swayed gently in the breeze.
3
The flat, wide section of an oar, propeller, or turbine that pushes against water or air.
The propeller blade was damaged during the storm.
4
The thin, flat metal runner on an ice skate.
The blades on my ice skates need to be sharpened.