滝壺

1. Origins, structure, and basic meaning

• Structure: 滝壺 is read as たきつぼ and is a noun for a plunge pool, the deep pool directly beneath a waterfall.
• Basic usage: Spray near a plunge pool appears in 滝壺の近くの水しぶき, while looking down at a deep pool appears in 深い滝壺を見下ろす.

2. Common pitfalls and similar expressions

• Location and depth
  • The examples show both its position beneath a waterfall and its depth when viewed from above.
• Difference from 滝
  • Unlike the waterfall itself, this term denotes the pool where the falling water collects below.