ranch

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

• noun An extensive farm, especially in the western United States, on which large herds of cattle, sheep, or horses are raised.
• noun A large farm on which a particular crop or kind of animal is raised.
• noun A house in which the owner of an extensive farm lives.
• intransitive verb To manage or work on a ranch.

from The Century Dictionary.

• To wrench; tear; wound.
• noun A deep scratch or wound.
• To conduct or work upon a ranch; engage in herding.
• noun In the western part of the United States, especially in the parts formerly Mexican, on the great plains, etc., a herding establishment and estate; a stock-farm; by extension, in the same regions, any farm or farming establishment.
• noun In a restricted sense, a company of ranchers or rancheros; the body of persons employed on a ranch.
• noun Also, a permanent Indian village.
• noun A small hut or house in the country, not necessarily a cattle-breeding establishment.

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

• transitive verb rare To wrench; to tear; to sprain; to injure by violent straining or contortion.
• noun Western U. S. A tract of land used for grazing and the rearing of horses, cattle, or sheep. See rancho, 2.

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

• noun A large plot of land used for raising cattle, sheep or other livestock.
• noun A small farm that cultivates vegetables and/or livestock.
• noun A house or property on a ranch land.
• noun A type of salad dressing.
• verb To operate a ranch; engage in ranching.
• verb To work on a ranch

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

• verb manage or run a ranch
• noun farm consisting of a large tract of land along with facilities needed to raise livestock (especially cattle)