gistfile1.txt

brother-in-law >>>>> cunhado
sister-in-law >>>>> cunhada
mother-in-law >>>>> sogra
father-in-law >>>>> sogro
son-in-law >>>>> genro
daughter-in-law >>>>> nora, não enteada, como disse a Mari

quer mais? então aí vai:
god father >>>>> padrinho
god mother >>>>> madrinha
god son >>>>> afilhado
god daughter >>>>> afilhada

step father >>>>> padrasto
step mother >>>>> madrasta
step son >>>>> enteado
step daughter >>>>> enteada

aunt >>>>> tia
uncle >>>>> tio
cousin >>>>> primo (a)
nephew >>>>> sobrinho
niece >>>>> sobrinha

grandmother >>>>> avó
grandfather >>>>> avô
grandson >>>>> neto
granddaughter >>>>> neta

great grandmother >>>>> bisavó 
great grandfather >>>>> bisavô 
great grandson >>>>> bisneto 
great granddaughter >>>>> bisneta

great great grandmother >>>>> trisavó (tataravó)
great great grandfather >>>>> trisavô (tataravô)
great great grandson >>>>> trineto (tataraneto)
great great granddaughter >>>>> trineta (tataraneta)
(note que você sempre adiciona um ''great'')

pais >>>>> parents 
filhos >>>>> children