1. decorum propriety in manners and conduct
  2. decorator someone who decorates
  3. decorate make more attractive, as by adding ornament or color
  4. decorous characterized by propriety and dignity and good taste
  5. decoder the kind of intellectual who converts messages from a code to plain text
  6. decor the style, furnishing, and layout of an interior space
  7. decolor remove color from
  8. decree a legally binding command or decision
  9. declarer someone who claims to speak the truth
  10. declare state emphatically and authoritatively
  11. decry express strong disapproval of
  12. demerara a light brown raw cane sugar from Guyana
  13. decolour remove color from
  14. decumary woody climber of southeastern United States having white flowers in compound terminal clusters
  15. Demerara a former Dutch colony in South America; now a part of Guyana
  16. contemporary occurring in the same period of time
  17. scorer a player who makes a score in a game or contest
  18. Decatur a city in central Illinois
  19. decker something constructed with multiple levels
  20. decrease a change downward