1. discourse an extended communication dealing with some particular topic
  2. discovered discovered or determined by scientific observation
  3. discursive tending to cover a wide range of subjects
  4. discoverable capable of being ascertained or found out
  5. discoverer someone who is the first to observe something
  6. discolorise remove color from
  7. discover determine the existence, presence, or fact of
  8. discovery the act of finding something
  9. discourteous showing no politeness
  10. discolourise remove color from
  11. Discovery Day a legal holiday commemorating the discovery of America by Christopher Columbus
  12. discolorize remove color from
  13. discourtesy a lack of politeness
  14. discrepancy a difference between conflicting facts or claims or opinions
  15. discovered check a check on the opponent's king that is delivered by moving a piece out of the line of attack by a queen or rook or bishop
  16. discretion power of making choices unconstrained by external agencies
  17. disk overhead (computer science) the disk space required for information that is not data but is used for location and timing
  18. vascular tissue tissue that conducts water and nutrients through the plant body in higher plants
  19. task force a semipermanent unit created to carry out a continuing task
  20. sinus cavernosus either of a pair of large venous sinuses in the cranial cavity