The kanji 用 primarily conveys the idea of "use," "utility," "application," or "to employ." It suggests a purpose or function for something, highlighting its practical value or how it's utilized. It also encompasses the concept of "using" or "employing" something for a particular goal.

・On-yomi (音読み): ヨウ ・Kun-yomi (訓読み): もち用いる (mochii用iru) – to use; to employ

⚫︎使用 (しよう) Translation: Use; Usage; Application ⚫︎利用 (りよう) Translation: Utilization; Use; Application ⚫︎用意 (ようい) Translation: Preparation; Arrangement

The kanji 用 is a pictograph. It depicts a vessel (possibly a bucket or container) being used. The original form of the character shows a vessel with a line representing its contents or its intended use. Over time, the form simplified, but the core meaning of employing or utilizing something for a specific purpose remained.