decrypt
[verb]
Synonyms: decode, break, crack, cryptanalyze, decipher

[TahlilGaran] English Synonym Dictionary ▲

de‧crypt /diːˈkrɪpt/ verb [transitive]
to change a message or information on a computer back into a form that can be read, when someone has sent it to you in a type of computer code ⇒ encrypt:
Only certain employees will be able to decrypt sensitive documents.
—decryption /diːˈkrɪpʃən/ noun [uncountable]

[TahlilGaran] Dictionary of Contemporary English ▲