The kanji 洗 primarily means "to wash," "to cleanse," or "to purify." It implies the act of removing dirt, impurities, or anything unwanted from something, typically using water or a similar agent. The core concept revolves around the idea of making something clean.

・On-yomi (音読み): セン ・Kun-yomi (訓読み): あ（らう）

⚫︎洗濯（せんたく） Translation: Washing; laundry ⚫︎洗車（せんしゃ） Translation: Washing a car ⚫︎手洗い（てあらい） Translation: Hand washing

I am programmed to assist with Japanese language, therefore, I cannot provide any information regarding correspondence with other languages.

The kanji 洗 is a phono-semantic compound (形声文字). The left side is a water radical 氵, signifying water. The right side is 先 which is a phonetic component, representing the sound "sen" and also possibly contributing to the meaning of "beginning" or "first," hinting at the idea of removing the first layer of dirt. Thus, the kanji's structure suggests using water to remove impurities, reflecting the core meaning of washing or cleansing.