The kanji 削削 fundamentally means to "shave," "pare," "cut away," or "reduce." It implies removing something from a surface or diminishing its size or amount. The core concept revolves around the action of making something smaller or smoother by removing material.

・On-yomi (音読み): ・サク (saku) ・Kun-yomi (訓読み): ・けず（る） (kezuru)

⚫︎鉛筆を削る Translation: To sharpen a pencil. ⚫︎予算を削減する Translation: To cut the budget. ⚫︎木の表面を削る Translation: To plane the surface of wood.

The kanji 削削 is a 形声文字 (keisei moji), a phono-semantic compound. The phonetic component is 肖 (shou/shou, meaning "similar" or "resemble"), and the semantic component is 刀 (katana, meaning "sword" or "blade"). The combination of these components suggests using a blade (刀) to reduce or shave something to make it look "similar" (肖) or to alter its shape. The 刀 radical suggests the action of cutting or removing, and the 肖 component provides a clue to the sound and potentially the nuance of the action. The character has evolved from depicting the action of cutting with a knife to represent a reduction or removal of a part of something.