noun

• (Southwestern US, informal, sometimes offensive) A North American, especially a white one (regardless of actual ethnicity), whose native language is English (as opposed to Americans who have another native language).
  "Spanish was the only "foreign" language taught in the school, where most of the students spoke Spanish as a first language, and it was taught by an Anglo teacher from textbooks written by and for Anglos […] Somehow, the school administration saw no contradiction in rewarding Anglo students for learning to conjugate ser while punishing Chicano students for speaking Spanish on the school grounds."
• (Australia, informal) An Anglo-Australian (as opposed to Australians of Mediterranean or Middle Eastern background)
• (Canada, informal) An English-speaking Quebecer.
• (nonstandard) A British person or person of British ancestry.