Ranchero \Ran*che"ro\ (r[a^]n*ch[=a]"r[-o]), n.; pl. {Rancheros} (r[a^]n*ch[=a]"r[=o]z). [Sp.] [Mexico & Western U. S.] 1. A herdsman; a peasant employed on a ranch or rancho. [1913 Webster] 2. The owner and occupant of a ranch or rancho. [1913 Webster]