1) Cipher 2) Code 3) Steganogram 1) Cryptograph 2) Piece of writing 3) Secret writing 4) Word puzzle 5) Writing 6) Written material 
A cryptogram is a type of puzzle that consists of a short piece of encrypted text. Generally the cipher used to encrypt the text is simple enough that cryptogram can be solved by hand. Frequently used are substitution ciphers where each letter is replaced by a different letter or number. To solve the puzzle, one must recover the original lettering...
• (n.) A cipher writing. Same as Cryptograph.
Cryp'to·gram noun A cipher writing. Same as Cryptograph . 
[n] - a piece of writing in code or cipher
cryptogram, cryptogramic, cryptogrammatic A piece of cryptographic (secret) writing; anything written in cipher, or in such a form or order that a key is required in order to know how to understand and put the letters together.cryptogram, cryptograph 1. A message or writing in code or cipher. 2. A machine for writing or deciphering encoded messages.
cryptograph 1 secret writing noun a piece of writing in code or cipher
a message or writing in code or cipher; cryptograph. · an occult symbol or representation.