1. 密码：cryptogram 密码 | cryptograph 密码 | cryptography 密码术
2. 密文：cryptogrammic 密码的 | cryptograph 密文 | cryptographer 译解密码者
3. 用密码写的通信：cryptogram /密码/ | cryptograph /用密码写的通信/ | cryptographer /担任密码者/译解密码者/
noun
1. a device for deciphering codes and ciphers
2. a piece of writing in code or cipher
Synonym: cryptogramsecret writing
3. a secret method of writing
Synonym: ciphercyphersecret code