noun
top of a waterfall
Refers to the brink or crest of a waterfall, where the water begins to fall.
滝口に立つと、水の音がすごく大きい。
When you stand at the top of the waterfall, the sound of the water is incredibly loud.
Standard kanji spelling; it is a common form.
Compound of 滝 (taki, 'waterfall') and 口 (kuchi, 'mouth; opening'), literally 'waterfall mouth'.