暗号

暗號
ànhào
  1. secret signal (sign)
  2. countersign
  3. password

CEDICT

secret sign; secret signal

Wiktionary

祕密的口令或记号。

重編國語辭典

  1. 彼此约定的秘密信号（利用声音、动作等）。例：联络~。
  2. 祕密的口令或记号。

維基詞典

Entry Composition

=1 暗 àn variant of 暗 àn
=1 暗 àn
  1. dark
  2. to turn dark
  3. secret; hidden
  4. (literary) confused; ignorant
=1 暗 àn
  1. (literary) to close (a door)
  2. to eclipse
  3. confused; ignorant (variant of 暗 àn)
  4. dark (variant of 暗 àn)
2 号 hào
  1. ordinal number
  2. day of a month
  3. mark
  4. sign
  5. business establishment
  6. size
  7. ship suffix
  8. horn (wind instrument)
  9. bugle call
  10. assumed name
  11. to take a pulse
  12. classifier used to indicate number of people

Related entries

通关密语 tōngguānmìyǔ password
口令 kǒulìng
  1. oral command
  2. a word of command (used in drilling troops or gymnasts)
  3. password (used by sentry)