yǎo​yá

clench teeth

咬牙 yǎo​yá
clench teeth verb
To press one's teeth together tightly or grind them, typically as a result of anger, determination, or physical pain.

He gritted his teeth and pushed through the final hundred meters.

gnaw verb
To bite or chew on something persistently.

He gritted his teeth and pushed through the final kilometer.

Frequency

Movie subtitles
0.510 per million appears in 0% of films
Written text
4.72 per million

Sources

Definitions
CC-CEDICT