1. prewar existing or belonging to a time before a war
  2. preform form or shape beforehand or determine the shape of beforehand
  3. re-arm arm anew
  4. program a series of steps to be carried out
  5. perform get done
  6. premier first in rank or degree
  7. primary of first rank or importance or value
  8. premiere the first public performance of a play or movie
  9. rearm arm again
  10. prior earlier in time
  11. premium having or reflecting superior quality or value
  12. pro forma in a set manner without serious attention
  13. forearm the part of the superior limb between the elbow and the wrist
  14. presume take to be the case or to be true
  15. firearm a portable gun
  16. precarious not secure; beset with difficulties
  17. wireworm wormlike larva of various elaterid beetles
  18. pretorium the tent of an ancient Roman general
  19. wiper arm contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet
  20. prelim a minor match preceding the main event