waterfall, rapids, cascade
滝 centers on water falling steeply: a waterfall, rapids, or cascade. The core idea is a dramatic downward rush of water.
滝 is the modern simplified form of 瀧. The older form combines 氵 (water) with 龍 (dragon), suggesting a dragon-like torrent of water. The modern right side 竜 is a simplification of 龍.
Water 氵 rushes down like a dragon 竜, creating a powerful waterfall.
For ロウ, imagine a low, rumbling roar as the waterfall crashes down: low roar -> ロウ.
waterfall
rapids
top of a waterfall
shirataki noodles; white noodles made from konjak starch, often used in sukiyaki
small waterfall; cascade
plunge basin; waterfall lake; plunge pool; basin under a waterfall
smaller waterfall (of the two)
dried up waterfall; dry waterfall
to stand under a waterfall (as spiritual training)
profuse sweating
(fish) climbing (swimming) up waterfall
ritual acts performed under a waterfall
greater waterfall (of the two)