IPA: /ɪnˈsaɪfə/
KK: /ɪnˈsaɪfər/
To convert a message into a coded form to keep it secret.
The spy had to encipher the documents before sending them.
Past: enciphered
Past Participle: enciphered
Encipher → It is formed from "en-" (meaning to cause to be in) and "cipher" (from Greek "kryptos", meaning hidden or secret). The word "encipher" means to convert a message into a coded form, making it hidden or secret.
Think of 'causing something to be in' a 'hidden' form — that's why encipher means to convert a message into a secret code.