decipher
🇺🇸
/dɪˈsaɪfər/
🇬🇧
/dɪˈsaɪfə(r)/
to understand or translate coded or difficult-to-read writing
She managed to decipher the ancient symbols on the wall.
to figure out the meaning of something that is not clear or hard to understand
It was difficult to decipher his meaning from his vague response.