knock down Meaning, Definition & Usage

1. verb cause to come or go down
   down; push down; pull down; cut down.
   
   • The policeman downed the heavily armed suspect
   • The mugger knocked down the old lady after she refused to hand over her wallet
2. verb knock down with force
   floor; dump; coldcock; deck.
   
   • He decked his opponent
3. verb shatter as if by explosion
   blast.
   

WordNet