The kanji 薄 generally conveys the idea of "thin," "weak," "pale," or "faint." It implies a lack of density, intensity, or substance. It can describe physical thinness, a weak emotional state, or a pale color.

・On-yomi (音読み): ハク(haku) ・Kun-yomi (訓読み): うす-い(usu-i) (thin, weak, pale)

⚫︎ 薄い紙(usui kami) Translation: Thin paper. ⚫︎ 薄暗い部屋(usugurai heya) Translation: A dimly lit room. ⚫︎ 愛情が薄れる(aijou ga usureru) Translation: Love fades/weakens.

The kanji 薄 is a phono-semantic compound (形声文字, keisei moji). It combines the semantic element of 草(kusa), meaning "grass" or "plant," and the phonetic element 尃(fu). 草 indicates the meaning of being light, weak and 尃provides the sound. The original meaning of 薄 was related to grass or plants that are not very dense. Over time, the meaning expanded to encompass the broader concepts of thinness, weakness, and paleness.