We don't have synonyms for rancho yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are ranch, ranchi and sancho.
(n) :
a large plot of land used for raising cattle, sheep, or other livestock; a small farm that cultivates vegetables or livestock (used primarily in some localities of the western United States (including California)
(v) :
to operate or work on a ranch; to engage in ranching
(n) :
a large plot of land used for raising cattle, sheep, or other livestock; a small farm that cultivates vegetables or livestock (used primarily in some localities of the western United States (including California)
(v) :
to operate or work on a ranch; to engage in ranching