落差
Meanings
1
Physical vertical difference in water level, such as a waterfall drop or hydraulic head.
The drop of this waterfall is about 50 meters.
Electricity is generated using the head of the dam.
2
Abstract gap or disparity between two things, such as expectations and reality, or ability levels.
I struggle with the gap between ideals and reality.
There is a big disparity in ability between the two teams.
Usage patterns
- 落差があるthere is a gap/disparity (between two things)
There is a big gap between expectation and reality.
- 落差を感じるto feel a gap/disparity
He was troubled, feeling the gap between his ideals and reality.
- 〈数〉メートルの落差a drop of X meters (of a waterfall, etc.)
This waterfall is a famous spot boasting a 100-meter drop.
- 落差を埋めるto bridge/close the gap
He practiced every day to close the gap in skill between the two of them.