It's likely a misspelling of "deciphering".
Deciphering means to:
* Decode: To figure out the meaning of something that is written in code or a secret language.
* Unravel: To understand something that is complex or confusing.
* Interpret: To understand the meaning of something that is unclear or ambiguous.
For example:
* "The detective spent hours deciphering the cryptic message."
* "It took me a long time to decipher the instructions."
* "She tried to decipher the meaning behind his strange behavior."