blade in WordNet English dictionary

1. the flat part of a tool or weapon that (usually) has a cutting edge
   blade 
   
2. a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard
   sword  blade  brand  steel 
   
3. flat surface that rotates and pushes against air or water
   blade  vane 
   
4. the part of the skate that slides on the ice
   blade 
   
5. a broad flat body part (as of the shoulder or tongue)
   blade 
   
6. a cut of beef from the shoulder blade
   blade 
   
7. something long and thin resembling a blade of grass
   "a blade of lint on his suit"
   blade 
   
8. a dashing young man
   "gay young blades bragged of their amorous adventures"
   blade 
   
9. especially a leaf of grass or the broad portion of a leaf as distinct from the petiole
   blade  leaf blade