casta
Meanings
Noun
1. caste
2. lineage (of a person)
3. breed (of an animal)
4. establishment (the exclusive class of powerful people thought to really rule the country) (Spain, Argentina)
Examples1
Los mestizos no pertenecen a ninguna casta, y por eso suelen ser marginados.
Mestizos don't belong to any caste, and so they tend to be marginalized.