Knock

Knock, nok, v.i. to strike with something hard or heavy: to drive or be driven against: to strike for admittance: to rap.—v.t. to strike: to drive against.—n. a sudden stroke: a rap.—adj. Knock′-down, such as to overthrow.—ns. Knock′er, the hammer suspended to a door for making a knock: a goblin inhabiting a mine who points out the presence of ore by knocks; Knock′ing, a beating on a door: a rap.—adj. Knock′-kneed, having knees that knock or touch in walking.—Knock about (slang), to saunter, loaf about; Knock down, to fell with a blow: assign to a bidder with a tap of the auctioneer's hammer; Knock into a cocked hat (see Cock); Knock off, to desist, cease: to accomplish hastily; Knock on the head, to bring to a sudden stop; Knock out, to beat in a boxing match, to overcome generally: to lose the scent—of hounds in fox-hunting; Knock-out auction, an auction where the bidders are largely swindling confederates; Knock together, to get together or construct hastily; Knock under, to give in, yield; Knock up, to rouse by knocking: weary out, or be worn out: to construct hastily: (U.S.) to get with child. [A.S. cnucian, cnocian; imit. like knack; cf. Gael. cnac, cnag, &c.]