1. 孙子,外孙：Grandparent: 祖父母、外祖父母; | Grandson: 孙子,外孙; | Half-brother:同母异父兄弟;同父异母兄弟;
2. 外孙子：grandparents 祖父母,外祖父母 | grandson (外)孙子 | granny 老奶奶;祖国;外婆
3. 孙：grandchildren 孙子女 | grandson 孙 | granddaughter 孙女
1. （外）孙子;（外）孙女
Someone''s grandson is the son of their son or daughter.
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e.g. My grandson''s birthday was on Tuesday.
星期二是我孙子的生日。
noun
1. a male grandchild