Immediate family
mother
madre
aunt
tia
stepfather
padrastro
grandfather
abuelo
father
padre
uncle
tio
stepmother
madrastra
grandmother
abuela
Brother
hermano
Cousin (girl)
prima
stepsister
hermanastra
nephew
sobrino
sister
hermana
cousin (boy)
primo
stepbrother
hermanastro
niece
sobrina