What does cryptogram mean?
A cryptogram is a piece of text that has been deliberately transformed into a coded form so that its meaning is hidden from anyone who does not know the method or key used to encipher it. The term applies both to serious secret communication — diplomatic, military, or personal messages rendered unreadable to interceptors — and to a popular genre of recreational puzzle in which solvers must work out the substitution pattern to reveal a hidden quotation or phrase. Solving a cryptogram rewards pattern recognition, frequency analysis, and patience: recurring letters and word shapes offer clues that gradually unlock the plaintext. The word carries connotations of mystery, secrecy, and intellectual challenge, and it sits within the broader family of cryptography alongside related terms such as cipher, code, and ciphertext. From wartime codebreaking to weekend puzzle pages, the cryptogram endures as one of the most recognizable embodiments of hidden writing.
nounA text written in a secret code or cipher, intended to conceal its meaning from anyone who lacks the key to decipher it. The word also refers, especially in puzzle contexts, to a short piece of encrypted text offered as a challenge to be decoded.
- A message written in cipher or secret characters, meant to be unintelligible without the key.
- A puzzle consisting of a short encrypted passage, typically solved by deducing the substitution scheme (common in puzzle magazines).
"The intercepted cryptogram took the codebreakers three weeks to crack."
"The spy transmitted the coordinates as a cryptogram that only her handler could decode."
"Every Sunday paper includes a cryptogram for readers who enjoy cracking ciphers over breakfast."
Standard plural, used freely when referring to multiple coded messages or puzzle items.
"The archive contains hundreds of wartime cryptograms awaiting decryption."
Edgar Allan Poe famously boasted he could crack any cryptogram sent to him — and then solved every single one his readers submitted.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cryptogram
Cryptogram derives from Greek roots: 'kryptos', meaning hidden or concealed, and 'gramma', meaning something written, joined via French 'cryptogramme'. The compound reflects the same combining elements found throughout the vocabulary of secrecy, including cryptography, cryptic, and encrypt. It entered English usage around the mid-19th century, when interest in ciphers and puzzle-solving was flourishing.
Related word forms
How cryptogram is actually used
Neutral register, used both in technical discussions of cryptography and in recreational puzzle contexts. In puzzle usage, 'cryptogram' usually implies a simple letter-substitution cipher rather than modern computer encryption, which is more often called 'ciphertext'.
Easily confused with cryptogram
A cryptograph is either an encryption device or the act/product of encrypting in technical contexts, while a cryptogram is specifically the encoded text itself; in everyday use the two overlap heavily and 'cryptogram' is far more common.
A cryptogam is a plant that reproduces by spores (such as a fern or moss) — a completely unrelated botanical term that merely sounds similar.