child

1. Origins, structure, and basic meaning

• Structure: 児 means a child and has the on-reading じ.
• Basic usage: 育児(いくじ) means caring for and raising children, while 児童(じどう) refers to children.

2. Common pitfalls and similar expressions

• Children as people and the activity of raising them
  • 児童 refers to people, such as children playing in a schoolyard. 育児 is the activity of caring for and raising them, so it can be divided as a responsibility, as in 育児の分担.