The kanji 濫 generally conveys the idea of "overflow," "excess," "profusion," "to be excessive," or "to spread out uncontrollably." It often implies something being done in a careless, indiscriminate, or excessive manner, going beyond appropriate limits.

・On-yomi (音読み): ラン (ran) ・Kun-yomi (訓読み): みだ-りに (mida-ri ni) - roughly translates to "carelessly," "recklessly," or "excessively."

⚫︎濫用（らんよう） Translation: abuse; misuse; overuse ⚫︎濫伐（らんばつ） Translation: deforestation; reckless logging ⚫︎濫觴（らんしょう） Translation: origin; beginning; source

The kanji 濫 is a phono-semantic compound (形声文字). It is composed of two parts: a semantic component (meaning part) and a phonetic component (sound part). The semantic component is 氵 (水 - water, liquid), which provides the meaning related to water or fluidity. The phonetic component is 監 (kan), which contributes to the sound of the kanji. Originally, it depicted water overflowing or spreading out, thus the meaning "to overflow," or "excessive." The character was later extended to include the idea of general excess or lack of restraint.