decipherer
nounUK /dɪˈsaɪfərə/
US /dɪˈsaɪfərər/
A person who figures out what something secret or hard to read means.
The decipherer solved the puzzle and read the hidden message.
OTHER MEANINGS
2. Someone who reads old or messy writing that is hard to understand.
The decipherer carefully read the faded letter from long ago.
3. A person or tool that turns secret code into normal words.
The decipherer cracked the spy's code in minutes.
4. Someone who makes sense of a confusing situation or idea.
She was a good decipherer of her friends' mixed feelings.