IPA: /dɪˈsaɪfərebl/
KK: /dɪˈsaɪfərəbəl/
Something that can be understood or interpreted clearly.
The handwriting was so neat that it was easily decipherable.
Decipherable → It is formed from "de-" (meaning down or away) and "cipher" (from Old French *cifre*, meaning a code or a method of writing). The suffix "-able" (meaning capable of) indicates that something can be deciphered. Thus, "decipherable" means capable of being decoded or understood from a code.
Think of 'decoding' something 'down' or 'away' from a 'code' — that's why decipherable means it can be understood.