滝 means “waterfall”

たき · taki

Also: rapids, cascade

Kun'yomi (Japanese reading)
たき
On'yomi (Chinese reading)
ロウ, ソウ

JLPT N1 · Taught in secondary school · 13 strokes

The story

Water (氵) beside a dragon (竜): picture a waterfall roaring down a cliff like a dragon in flight. 滝 is a waterfall, from Nikko's great 華厳の滝 to the 滝行 of ascetics who stand under icy falls, and 滝のような汗 is sweat pouring down.

Used in 滝 (taki, waterfall), 滝つぼ (takitsubo, plunge pool), and 滝行 (takigyou, ascetic training under a waterfall)

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