yá​guān

jaw

牙关 (牙關) yá​guān
jaw noun
the mandibular joint or the physical area where the upper and lower teeth meet, often mentioned in the context of clenching or involuntary movement
resolve
the clenching of the teeth as a figurative representation of determination, grit, or the endurance of pain and hardship

Frequency

Movie subtitles
0.240 per million appears in 0% of films
Written text
0.557 per million

Sources

Definitions
CC-CEDICT