1.
key point, gist, crux
The most important or essential part of something. The critical element that determines success or failure.
Usage
Sense 1 is common in everyday conversation to identify the most important aspect of something. 〜が肝だ means "~ is the key."
Sense 2 appears mainly in set expressions involving courage, fear, or surprise.
Common expressions
- 肝が据わる: to have guts, to be unflinching
- 肝を冷やす: to be frightened, to have a scare
- 肝が太い: bold, nervy
- 肝試し: test of courage (haunted house, etc.)
Common collocations
Related Words
Related:
肝心 (crucial, essential)