knock down

Verb

• shatter as if by explosion

• knock down with force
  • He decked his opponent
    

• cause to come or go down
  • The policeman downed the heavily armed suspect
    
  • The mugger knocked down the old lady after she refused to hand over her wallet
    

Related words

• Synonyms: 
  blast , deck , coldcock , dump , floor , down , cut down , push down , pull down