| n. | 1. | That which knocks one down; something that overpowers or overwhelms, as strong liquor; specif., a kind of ale or beer that is very strong. |
| 2. | A knocking down; a felling by a knock, as of a combatant, or of an animal; a blow that overwhelms; also, a fist fight. |
| 3. | Something that knocks down, or takes apart, for packing or removal, as a piece of furniture; also, state of being knocked down, or taken apart. |
| a. | 1. | Of force sufficient to fell or completely overthrow; as, a knockdown blow; a knockdown argument.. |
| 2. | Designating a rivet end to be formed into a head by upsetting in fastening. |
| 3. | Of or pertaining to the act of knocking down at an auction; specif., designating the price below which an article will not be disposed by the auctioneer. |
| 4. | Made or constructed so as to be capable of being knocked down or taken apart, as for transportation. |