Defn: Act of knocking out, or state of being knocked out.

KNOCK-OUT
Knock"-out`, a.

Defn: That knocks out; characterized by knocking out; as, a knock-out blow; a knock-out key for knocking out a drill from a collet.

KNOCK-OUT DROPS
Knock-out drops.

Defn: Drops of some drug put in one's drink to stupefy him for purpose of robbery, etc. [Slang, U. S.]

KNOCKSTONE
Knock"stone`, n. (Mining)

Defn: A block upon which ore is broken up.

KNOLL Knoll, n. Etym: [AS. cnoll; akin to G. knolle, knollen, clod, lump, knob, bunch, OD. knolle ball, bunch, Sw. knöl, Dan. knold.]

Defn: A little round hill; a mound; a small elevation of earth; the
top or crown of a hill.
On knoll or hillock rears his crest, Lonely and huge, the giant oak.
Sir W. Scott.

KNOLL
Knoll, v. t. [imp. & p. p. Knolled; p. pr. & vb. n. Knolling.] Etym:
[OE. knollen, AS. cnyllan. See Knell.]