1. Christmas a Christian holiday celebrating the birth of Christ
  2. crassitude the quality of being crass--devoid of refinement
  3. curiosity a state in which you want to learn more about something
  4. Cricetidae mostly small New World rodents including New World mice and lemmings and voles and hamsters
  5. cross-dress dress in the clothes of the other sex
  6. christless not believing in Christ
  7. cryostat a thermostat that operates at very low temperatures
  8. crustaceous being or having or resembling a hard crust or shell
  9. crystalise cause to form crystals or assume crystalline form
  10. cursed with burdened with
  11. crested having a usually ornamental tuft or process on the head
  12. crow-sized having the approximate size of a crow
  13. crusted having a hardened crust as a covering
  14. crusader someone who is a diligent and ardent advocate of a cause
  15. curiousness a state of active curiosity
  16. Christendom the collective body of Christians throughout the world and history (found predominantly in Europe and the Americas and Australia)
  17. crystallise cause to form crystals or assume crystalline form
  18. crystalize cause to form crystals or assume crystalline form
  19. Pristidae large primitive rays with elongated snouts
  20. Gulf States the countries in southwestern Asia that border the Persian Gulf