表姑

    Second cousin

    表叔

    Second cousin

    表兄弟

    Father's sister's sons; male cousin

    表兄弟

    Maternal male cousin

    表侄

    Second cousin

    表姊妹

    Father's sister's daughters; female cousin

    表姊妹

    Maternal female cousin

    伯父/大爷

    Father's older brother; Elder uncle

    伯母/大娘

    Father's older brother's wife; Aunt

    伯叔祖父

    Father's father's brother; Great uncle

    伯叔祖母

    Father's father's brother's wife; Great aunt

    长兄/哥哥

    Older Brother

    长姊/姐姐

    Older Sister

    大伯

    Husband's older brother; brother-in-law

    大姑

    Husband's older sister; sister-in-law

    弟妇/弟妹

    Younger brother's wife; sister-in-law

    儿子

    Son

    父亲/爸爸

    Father

    高祖父

    Great great grandfather

    高祖母

    Great great grandmother

    公公

    Husband's father；father-in-law

    姑夫

    Father's sister's husband; Husband of paternal aunt; uncle

    姑母

    Father's sister; Paternal aunt

    姑爷

    Father's father's sister's husband; Paternal grandaunt's husband

    继父

    Step father

    继母

    Step mother

    襟兄弟

    Husband of wife's sister

    舅父/舅舅

    Mother's brother; Maternal uncle

    舅母/妗子

    Mother's brother's wife; Maternal uncle's wife

    妹夫

    Younger sister's husband

    母亲/妈妈

    Mother

    内弟/小舅子

    Wife's younger brother

    内兄/大舅子

    Wife's older brother

    女儿

    Daughter

    女婿

    Daughter's husband; Son-in-law

    婆婆

    Husband's mother; mother-in-law

    妻子/老婆

    Wife

    嫂/嫂子

    Older brother's wife; sister-in-law

    婶母/婶子

    Father's younger brother's wife; Aunt

    叔父/叔叔

    Father's younger brother; Uncle

    叔丈母

    Wife's aunt

    叔丈人

    Wife's uncle

    孙女

    Son's daughter; Granddaughter

    孙女婿

    Son's daughter's husband; Granddaughter's husband

    孙媳夫

    Son's son's wife; Grandson's wife

    孙子

    Son's son; Grandson

    堂兄弟

    Father's brother's sons; Paternal male cousin

    堂姊妹

    Father's brother's daughters; Paternal female cousin

    同胞兄妹

    Sibling

    外甥

    Sister's son

    外甥

    Wife's sibling's son

    外甥女

    Sister's daughter

    外甥女

    Wife's sibling's daughter

    外甥女婿

    Sister's daughter's husband

    外甥媳妇 (来源：专业英语学习网站 http://www.EnglishCN.com)