gang

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

• noun A group of criminals or hoodlums who band together for mutual protection and profit.
• noun A group of adolescents who band together, especially a group of delinquents.
• noun Informal A group of people who associate regularly on a social basis.
• noun A group of laborers organized together on one job or under one foreperson.
• noun A matched or coordinated set, as of tools.
• noun A pack of wolves or wild dogs.
• noun A herd, especially of buffalo or elk.
• intransitive verb To band together as a group or gang.
• intransitive verb To arrange or assemble into a group, as for simultaneous operation or production.
• intransitive verb To attack as an organized group.

from The Century Dictionary.

• To go; walk; proceed.
• noun A going; walking; ability to walk.
• noun Currency.
• noun A way; course; passage.
• noun The channel of a stream, or the course in which it is wont to run; a watercourse.
• noun Hence A ravine or gulley.
• noun In mining. See gangue.
• noun The field or pasture in which animals graze: as, those beasts have a good gang.
• noun A number going or acting in company, whether of persons or of animals: as, a gang of drovers; a gang of elks.
• noun A number of workmen or laborers of any kind engaged on any piece of work under supervision of one person; a squad; more particularly, a shift of men; a set of laborers working together during the same hours.
• noun A combination of several tools, machines, etc., operated by a single force, or so contrived as to act as one: as, a gang of saws or plows; a gang of fish-hooks; a gang of mine-cars, tubs, or trams.
• noun As much as one goes for or carries at once; a go.
• noun A retired place; a privy; a jakes.
• noun Synonyms Covey, etc. See flock.
• noun Nautical, a set of standing rigging.
• To arrange in gangs; combine (several) into one set, to be operated together: as, to gang saws, plows, or the like. See gang, n., 9.

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

• intransitive verb To go; to walk.
• noun obsolete A going; a course.
• noun A number going in company; hence, a company, or a number of persons associated for a particular purpose; a group of laborers under one foreman; a squad
• noun A combination of similar implements arranged so as, by acting together, to save time or labor; a set.
• noun (Naut.) A set; all required for an outfit.
• noun (Mining) The mineral substance which incloses a vein; a matrix; a gangue.
• noun A group of teenagers or young adults forming a more or less formalized group associating for social purposes, in some cases requiring initiation rites to join.
• noun A group of persons organized for criminal purposes; a criminal organization.
• noun (Naut.) A plank within or without the bulwarks of a vessel's waist, for the sentinel to walk on.
• noun a small cask in which to bring water aboard ships or in which it is kept on deck.
• noun a cultivator or plow in which several shares are attached to one frame, so as to make two or more furrows at the same time.
• noun Rogation days; the time of perambulating parishes. See Gang week (below).
• noun a drilling machine having a number of drills driven from a common shaft.
• noun a master or employer of a gang of workmen.
• noun See Gang board (above).
• noun See Gang cultivator (above).
• noun a press for operating upon a pile or row of objects separated by intervening plates.
• noun a saw fitted to be one of a combination or gang of saws hung together in a frame or sash, and set at fixed distances apart.