1. diction the manner in which something is expressed in words
  2. introduction the act of beginning something new
  3. contradiction opposition between two conflicting forces or ideas
  4. reduction the act of decreasing something
  5. interdiction authoritative prohibition
  6. prediction a statement made about the future
  7. deduction the act of removing a part from the whole
  8. reproduction the act of making copies
  9. production the act or process of making something
  10. vitrification a vitrified substance; the glassy result of being vitrified
  11. putrefaction the process of decay caused by bacterial or fungal action
  12. attraction the quality of arousing interest
  13. valediction a farewell oration
  14. friction the resistance when a body is moved in contact with another
  15. reintroduction an act of renewed introduction
  16. redaction the act of putting something in writing
  17. direction a line leading to a place or point
  18. light reaction the first stage of photosynthesis during which energy from light is used for the production of ATP
  19. dereliction willful negligence
  20. mass production the manufacturing of large quantities of goods