1. transportation system a facility consisting of the means and equipment necessary for the movement of passengers or goods
  2. Transportation Secretary the person who holds the secretaryship of the Department of Transportation
  3. transportation the act of moving something from one location to another
  4. Transportation the United States federal department that institutes and coordinates national transportation programs; created in 1966
  5. transportation company a company providing transportation
  6. transpiration the emission of water vapor from the leaves of plants
  7. air transportation system a transportation system for moving passengers or goods by air
  8. transparent able to be seen through with clarity
  9. transparent gem a gemstone having the property of transmitting light without serious diffusion
  10. transatlantic crossing the Atlantic Ocean
  11. transformation the act of changing in form or shape or appearance
  12. transubstantiate change or alter in form, appearance, or nature
  13. transient lasting a very short time
  14. transport ship a ship for carrying soldiers or military equipment
  15. transmutation an act that changes the form or character or substance of something
  16. transposition the act of reversing the order or place of
  17. transparent quartz a clear quartz used in making electronic and optical equipment
  18. transplantation the act of removing something from one location and introducing it in another location
  19. transubstantiation an act that changes the form or character or substance of something
  20. transparently so as to allow the passage of light