1. They didn't realise that we'd broken their secret code.

2. They used elaborate secret codes, as when the names of trees stood for letters.

3. The letter was written in a secret code.

4. The journal comes with eight secret codes to protect privacy.

5. There were secret caches, secret trails, secret codes, secret missions, secret terrors and appetites and longings and regrets.

6. We've got to talk in secret codes, like the P-Funk codes.

7. His days of peering into the secret codes of foreign nations, he feared, were over for ever.

8. And we proved it by cracking the manufacturers' secret codes.

9. A government uses a cryptogram or secret code.

10. What is Your Secret Code,(/secret code.html) NOKIA?

11. Tell me, do you still have top secret code word clearance?

12. This paper introduces the realization of the secret code charging system in the ZXJ2000A SPC PABX, including the composition, processing, operation and management of the system.

13. In this secret code each number stands for a letter of the alphabet.

14. The secret code of his bank card has been stolen.

15. Choose what the secret code is, and write down the number.

16. He was asked to hand on the key to a secret code to the guerrillas.

17. She was shouting again, trying to tell Glover something in her secret code.

18. You'd need to do something like ask in Navajo or some secret code.

19. Aleynikov told federal agents that he didn't intend to hand over Goldman's secret code to anyone.

20. The gangsters threatened to bump him off if he would not tell them the secret code.

21. Tench wrote that the judge had e-mailed him to confirm he had guessed the secret code right.