I. Different definitions
1, nephew: nephew refers to nephew male, and also refers to daughter's son, the same as grandson (male); Nephew refers to niece, and also refers to daughter of daughter, the same as grandson (female).
2. Grandson: Grandson refers to the son of a son.
Second, the citation interpretation is different.
1, nephew: Wu's The Scholars, the fifth time: "My sister is dead. If you marry someone else, you will kill my nephew."
2. Grandson: Wu's "The Scholars" the second time: "Grandson, it is not easy for me to take care of you until now."
Third, the names are different.
1, nephew: nephew is used by elders to address the younger generation, and it is also used by the younger generation to address themselves.
2. Grandchildren: Grandchildren are usually called grandchildren by grandparents or grandfathers.