The kanji 察 (satsu) primarily conveys the meaning of "to perceive," "to guess," "to surmise," "to understand," or "to observe." It implies a process of careful consideration, examination, and the ability to grasp the hidden or subtle aspects of a situation or the emotions of others. It suggests insight and the ability to draw conclusions based on observation and intuition.

・On-yomi (音読み): サツ (satsu) ・Kun-yomi (訓読み): さっ-する (sassa-suru)

⚫︎ 警察官（けいさつかん） Translation: Police officer ⚫︎ 観察（かんさつ） Translation: Observation, to observe ⚫︎ 察知（さっち） Translation: To perceive, to sense

The kanji 察 is a 形声文字 (keisei moji), which means a phono-semantic compound character. This means it combines a semantic component (a part indicating the meaning) with a phonetic component (a part indicating the pronunciation). The semantic component is the radical 宀 (うかんむり – ukanmuri), which means "roof" or "house", and can suggest a place or environment. The phonetic component is 祭 (sai), which is used to indicate the pronunciation "satsu". The original meaning of the character was related to observing carefully, examining closely, or understanding the situation. The components together create the idea of carefully observing something within a certain environment (indicated by the roof), thus deriving the meanings of "to perceive" and "to surmise."