The kanji 額 primarily represents the "forehead" or "brow". It refers to the part of the face above the eyebrows and below the hairline. It can also figuratively represent something that is at the forefront or a sum of money.

・On-yomi (音読み): がく (gaku) ・Kun-yomi (訓読み): ひたい (hitai)

⚫︎ 額（がく） Translation: Forehead; brow ⚫︎ 金額（きんがく） Translation: Amount of money ⚫︎ 額縁（がくぶち） Translation: Picture frame

The kanji 額 is a phono-semantic compound (形声文字). The left side is the radical of "頁" (page, head) providing meaning, and the right side is the phonetic component "各" (each) which provides the sound. This combination creates the meaning of "forehead" as it relates to the area of the head.