decipher something to succeed in finding the meaning of something that is difficult to read or understand

Verb

Ex: She watched the girl’s expression closely, trying to decipher her meaning.

word definition: use up, as resources or materials

collocation: to deplete something

example: If we continue to deplete the earth's natural resources, we will cause seriousdamage to the environment.

Definition: that can be recognized or understood

Ex: there is often no discernible difference between rival brands