亲戚 ( relative ) ：
father 爸爸
mother 妈妈
uncle 叔叔
aunt 阿姨
cousin brother/sister 堂(或表)兄弟;堂(或表)姐妹
nephew 侄儿；外甥
niece 侄女
sister 姐妹
brother 兄弟
grandson 孙子
granddaughter 孙女
grandmother 祖母
grandfather 祖父
mother-in-law 婆婆；岳母
father-in-law 公公；岳父
daughter-in-law 媳妇
brother-in-law 大伯,小叔,姐夫,妹夫
sister-in-law 嫂子,弟妹,小姑
great-grandson （外）曾孙
great-granddaughter （外）曾孙女
great-grandfather （外）曾祖父
great-grandmother （外）曾祖母