IPA: /dɪˈsaɪfə/
KK: /dɪˈsaɪfər/
A person who interprets or makes sense of something that is difficult to understand, such as codes or complex information.
The decipherer worked tirelessly to decode the ancient manuscript.
Decipherer → It is formed from "de-" (meaning down or away) and "cipher" (from Old French *cifre*, meaning a code or zero). The suffix "-er" indicates a person who performs an action. Thus, a decipherer is a person who works to decode or interpret a code or cipher.
Think of someone working 'down' ('de-') to break apart a 'code' ('cipher') — that's what a decipherer does.