自家人
父母=parents（父母是2个人，所以要加复数s）
亲生父母=birth parents
爸爸=father=dad=papa
妈妈=mother=mom=mama
儿子=son
女儿=daughter
兄弟姐妹=siblings（一般说兄弟姐妹时不只1个人，所以要加复数s）
兄弟=brother
姐妹=sister
哥哥=older brother=elder brother
姐姐=older sister=elder sister
弟弟=younger brother=little brother
妹妹=younger sister=little sister
丈夫=husband
妻子=wife
近亲
舅舅/叔叔/伯父=uncle
姨妈/姑姑=aunt
堂兄弟姐妹/表兄弟姐妹=cousin
侄女/外甥女=niece
侄子/外甥=nephew
姑妈=aunt on my father's side
姨妈=aunt on my mother's side
舅舅=uncle on my mother's side
叔叔/伯父=uncle on my father's side
长辈
祖父母/外祖父母=grandparents
外公（姥爷）/爷爷=grandfather=granddad=grandpa
外婆（姥姥）/奶奶=grandmother=grandma=granny
孙子/孙女/外孙/外孙女=grandchild
孙子/外孙=grandson
孙女/外孙女=granddaughter
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长辈的长辈，记住前缀-great，长一辈就加一个-great
曾祖父/曾外公=great-grandfather（爸妈的爷爷/姥爷）
曾祖母/曾外祖母=great-grandmother
曾曾祖父/曾曾外祖父=great-great-grandfather
曾孙/曾外孙=great-grandson
曾孙女/曾外孙女=great-granddaughter
爸妈的姨妈/姑妈/舅妈/婶婶=great-aunt
爸妈的舅舅/叔叔/姨夫/姑父=great-uncle
因为结婚才有的亲戚，注意后缀in-law
弟妹/嫂子/大姑/小姑=sister-in-law
大舅子/小舅子/大伯/小叔=brother-in-law
婆婆/岳母=mother-in-law
公公/岳父=father-in-law
女婿=son-in-law
儿媳=daughter-in-law
还有一些情况
养父母=adoptive parents
养父=adoptive father
养母=adoptive mother
养子=adopted son
养女=adopted daughter
继父=stepfather
继母=stepmother
继女=stepdaughter
继子=stepson
继父或继母前一段婚姻中的兄弟=stepbrother
继父或继母前一段婚姻中的姐妹=stepsister
同父异母/同母异父的兄弟=half-brother
同父异母/同母异父的姐妹=half-sister
前夫=ex-husband
前妻=ex-wife
远房表亲=distant cousin
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