sock

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A short stocking reaching a point between the ankle and the knee.
• noun Meteorology A windsock.
• noun A light shoe worn by comic actors in ancient Greek and Roman plays.
• noun Comic drama; comedy.
• transitive verb To provide with socks.
• intransitive verb To hit or strike forcefully; punch.
• intransitive verb To deliver a blow.
• noun A hard blow or punch.
• idiom (sock it to (someone)) To deliver a forceful comment, reprimand, or physical blow to someone else.

from The Century Dictionary.

• To sew up.
• noun A plowshare; a movable share slipped over the sole of a plow.
• noun A light shoe worn by the ancient actors of comedy; hence, comedy, in distinction from tragedy, which is symbolized by the buskin.
• noun A knitted or woven covering for the foot, shorter than a stocking; a stocking reaching but a short distance above the ankle.
• noun A sandal, wooden patten, or clog for the feet, worn by the friars called Recollets.
• noun A dialectal form of sog.
• To throw; especially, to hurl or send with swiftness and violence: as, to sock a ball.
• To hit hard; pitch into: as, to sock one in the eye.
• With an impersonal it, to strike a hard blow; give a drubbing: as, sock it to him!
• noun Same as soke.

from the GNU version of the Collaborative International Dictionary of English.

• noun A plowshare.
• transitive verb Prov. or Vulgar To hurl, drive, or strike violently; -- often with it as an object.
• noun The shoe worn by actors of comedy in ancient Greece and Rome, -- used as a symbol of comedy, or of the comic drama, as distinguished from tragedy, which is symbolized by the buskin.
• noun A knit or woven covering for the foot and lower leg; a stocking with a short leg.
• noun A warm inner sole for a shoe.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A knitted or woven covering for the foot
• noun A shoe worn by Greco-Roman comedy actors
• noun A violent blow, punch
• noun A shortened version of (Internet) sock puppet
• verb transitive To hit or strike violently
• verb intransitive To deliver a blow

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun hosiery consisting of a cloth covering for the foot; worn inside the shoe; reaches to between the ankle and the knee
• verb hit hard
• noun a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind