Source : Webster's Revised Unabridged Dictionary (1913)

Rancho \Ran"cho\, n.; pl. {Ranchos}. [Sp., properly, a mess,
   mess room. Cf. 2d {Ranch}.]
   1. A rude hut, as of posts, covered with branches or thatch,
      where herdsmen or farm laborers may live or lodge at
      night.

   2. A large grazing farm where horses and cattle are raised;
      -- distinguished from hacienda, a cultivated farm or
      plantation. [Mexico & California] --Bartlett.