額

1. Origins, structure, and basic meaning

• Structure: 額 is read ひたい here and means the forehead, the part of the face above the eyebrows.
• Basic usage: It is used for sweat on the forehead after running or a hand placed on a child's forehead.

2. Common pitfalls and similar expressions

• The reading depends on the word
  • The body part 額 is read ひたい. In 金額(きんがく), meaning a sum of money, the same character is read がく.