1. protagonist the principal character in a work of fiction
  2. dictionary a reference book containing an alphabetical list of words
  3. protectionism the policy of taxing imports to shield domestic industries
  4. protectionist an advocate of protectionism
  5. production cost combined costs of raw material and labor incurred in producing goods
  6. production order an order that initiates the manufacturing process
  7. projection screen a white or silvered surface where pictures can be projected for viewing
  8. protection the activity of shielding someone or something
  9. production line series of machines and workers that build step-by-step
  10. projectionist the person who operates the projector in a movie house
  11. reduction gear gearing that reduces an input speed to a slower output speed
  12. punctuation mark the marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases
  13. production the act or process of making something
  14. perfectionist one displeased by anything that does not meet high standards
  15. protactinium a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
  16. security measures measures taken as a precaution against theft or espionage or sabotage etc.
  17. conduction anaesthesia anesthesia of an area supplied by a nerve
  18. board measure a system of units for measuring lumber based on the board foot
  19. protectiveness a feeling of protective affection
  20. protoctist genus any genus of Protoctista