clench (someone's) teeth

Translations
стиснуть зубы
She had to clench her teeth to endure the pain.
Ей пришлось стиснуть зубы, чтобы вынести боль.
Definitions
To tightly close or grind one's teeth together, often as a response to stress, anger, or pain.
Words
clench

verb
сжимать
someone

pronoun
кто-то
s

article or possessive pronoun
чей-то
teeth

noun
зубы