The kanji character 無 (む) primarily means "nothing," "without," "absence," "non-existence," or "lacking." It conveys the idea of the negation or lack of something, or the state of being empty or nonexistent. It is a fundamental concept used extensively in Japanese.

・On-yomi (音読み): ム (mu) ・Kun-yomi (訓読み): ない (nai)

⚫︎ 無料 (むりょう) Translation: Free of charge; without cost ⚫︎ 無駄 (むだ) Translation: Waste; futility; uselessness ⚫︎ 無理 (むり) Translation: Impossible; unreasonable;無理하다 (Korean)

The kanji 無 is a pictographic character. It is composed of the radical "灬" (fire) and an archaic character representing a dancer. The original meaning was likely associated with the lack of fire or the lack of something essential. Over time, it evolved to represent a general absence or negation.