hack

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

• noun A horse used for riding or driving; a hackney.
• noun A worn-out horse for hire; a jade.
• noun One who undertakes unpleasant or distasteful tasks for money or reward; a hireling.
• noun A writer hired to produce routine or commercial writing.
• noun A carriage or hackney for hire.
• noun A taxicab.
• intransitive verb To let out (a horse) for hire.
• intransitive verb To make banal or hackneyed with indiscriminate use.
• intransitive verb To drive a taxicab for a living.
• intransitive verb To work for hire as a writer.
• intransitive verb To ride on horseback at an ordinary pace.
• adjective By, characteristic of, or designating routine or commercial writing.
• adjective Hackneyed; banal.
• intransitive verb To cut or chop with repeated and irregular blows.
• intransitive verb To break up the surface of (soil).
• intransitive verb Informal To alter (a computer program).
• intransitive verb To gain access to (a computer file or network) illegally or without authorization.
• intransitive verb Slang To cut or mutilate as if by hacking.
• intransitive verb Slang To cope with successfully; manage.
• intransitive verb To chop or cut something by hacking.
• intransitive verb To write or refine computer programs skillfully.
• intransitive verb To use one's skill in computer programming to gain illegal or unauthorized access to a file or network.
• intransitive verb To cough roughly or harshly.
• noun A rough, irregular cut made by hacking.
• noun A tool, such as a hoe, used for hacking.
• noun A blow made by hacking.
• noun A rough, dry cough.

from The Century Dictionary.

• noun A grated frame. , ,
• noun In falconry, partial liberty. See the extract.
• noun A haw; a hedge.
• To place (bricks) in rows to dry before burning.
• To make irregular cuts in or upon; mangle by repeated strokes of a cutting instrument; cut or notch at random.
• To dress off the more prominent parts of (stone) with a hack-hammer.
• To chap; frost-bite, as the hands.
• To kick, as one player another in foot-ball; bruise by kicking.
• To break up, as clods of earth after plowing.
• To chop; cut: as, to keep hacking away at a log.
• To hop on one leg.
• To toil; work laboriously; strive to attain something.
• To stammer; stutter. Also hacker.
• To emit short sharp sounds in coughing; cough slightly and frequently; be affected by a short, broken, dry cough. Compare hawk.
• To chatter with cold.
• noun A cut; a notch.
• noun A cut in a tree to indicate a particular spot, or a series of cuts made in a number of trees as a guide through woods; a blazed line.