The kanji 溶溶 fundamentally conveys the concept of "melting," "dissolving," or "liquefying." It refers to the process of a solid changing into a liquid state due to heat or a substance becoming incorporated into a liquid, forming a solution. The core idea revolves around transformation and the breakdown of a solid or a substance.

・On-yomi (音読み): ヨウ (you) ・Kun-yomi (訓読み): と（ける） (to(keru)), と（かす） (to(kasu))

⚫︎氷が溶ける。 Translation: The ice melts. ⚫︎塩を水に溶かす。 Translation: Dissolve the salt in water. ⚫︎溶接 (ようせつ) Translation: Welding (Literally "melting connection")

The kanji 溶溶 is a phono-semantic compound (形声文字, keisei moji). The left side is the water radical (氵or ⺡), which provides the semantic component, indicating a relationship with liquids or the concept of flow. The right side is 容容 (you), which provides the phonetic component, suggesting the pronunciation "you". Together, these two components illustrate that "melting" or "dissolving" involves liquid, and in terms of its sound, it is read as "you". The character, therefore, blends the concept of water with the sound and meaning related to 容容.