Meaning ofknock downin English

Verb

1. to hit something; cause it to fall
   The storm will knock down several trees in the park.
2. to demolish; completely destroy something
   The construction team will knock down the old building next week.
3. to lower the price; reduce the cost
   The seller was willing to knock down the price of the house.
4. to disassemble something for transport or storage
   We need to knock down the furniture to move it to the new apartment.
5. to declare something sold; end an auction
   The auctioneer will knock down the painting to the highest bidder.