濫 means “overflow, excess”

らん · ran

Also: excessive, spread out

Kun'yomi (Japanese reading)
みだりに, みだりがましい
On'yomi (Chinese reading)
ラン

JLPT N1 · Taught in secondary school · 18 strokes

The story

Water (氵) beside 監, an eye (臣) bent over a basin (皿): picture the basin filling until it spills over the rim. 濫 goes past the limit: 氾濫 is flooding, and 濫用, abuse of power or drugs, is often written 乱用 in newspapers.

Used in 氾濫 (hanran, flooding), 濫用 (ran'you, abuse/misuse), and 濫獲 (rankaku, overfishing/overhunting)

More from Fire & Flood

Learn 濫 and more kanji free on Fuji Learning · All kanji

Readings from KANJIDIC2, © EDRDG, CC BY-SA.