The kanji 完 represents "completion," "perfection," or "end." It signifies something being finished, whole, or without any flaws. It can also imply the state of being entirely or fully done.

・On-yomi (音読み): カン (kan) ・Kun-yomi (訓読み): お（わる） (owar(u)) - to finish, to end. This reading is less common.

⚫︎ 完成（かんせい） Translation: Completion, perfection, finish. ⚫︎ 完全（かんぜん） Translation: Complete, perfect, entirely. ⚫︎ 完売（かんばい） Translation: Sold out. (Literally: "Completely sold.")

I am sorry, but I do not have enough information to explain the correspondence with your native language.

The kanji 完 is a 形声文字 (keisei moji), a phono-semantic compound character. The left side is a radical related to the roof or building structure, and the right side of the character, 元, originally served as a phonetic component, representing sound and also conveying a sense of "beginning" or "origin." Over time, the meaning evolved to represent completion. The combination of these elements created a character implying something is under the roof completely finished.