n. 1. See cryptogram. 2. A system of secret or cipher writing; a cipher. 3. a. A device for translating plaintext into ciphertext. b. A device for deciphering codes and ciphers. tr.v. cryp·to·graphed, cryp·to·graph·ing, cryp·to·graphs To write (a message, for example) in code or cipher. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.