forehead · amount

1. Origins, structure, and basic meaning

• Structure: The on reading is がく, and the kun reading is ひたい. It has 18 strokes. It appears in words for foreheads and monetary amounts.
• Basic usage: 額 is read ひたい and 金額 is read きんがく.

2. Common pitfalls and similar expressions

• 額 / 金額
  • 額 means forehead and is read ひたい. It refers to the forehead, where sweat may form or a hand may be placed to check for fever.
  • 走り終えた弟の額には汗が光っていた。 means “Sweat glistened on my younger brother's forehead after his run.”
  • 金額 means amount or sum and is read きんがく. It refers to a monetary amount written on a receipt or in a table.
  • 領収書に書かれた金額を確認しました。 means “I checked the amount written on the receipt.”