1. tarpaulin waterproofed canvas
  2. trillion the number that is represented as a one followed by 12 zeros
  3. terreplein level space where heavy guns can be mounted behind the parapet at the top of a rampart
  4. Durabolin an androgen (trade names Durabolin or Kabolin) that is used to treat testosterone deficiency or breast cancer or osteoporosis
  5. turbulent characterized by unrest or disorder or insubordination
  6. rebellion organized opposition to authority
  7. trip line a light rope used in lumbering to free a dog hook from a log at a distance
  8. trap line a line or series of traps
  9. turbulence instability in the atmosphere
  10. tourmaline a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones
  11. drop line a headline with the top line flush left and succeeding lines indented to the right
  12. urobilin brown bile pigment formed from urobilinogens and found in feces and in small amounts in urine
  13. troubling causing distress, worry, or anxiety
  14. dropline a headline with the top line flush left and succeeding lines indented to the right
  15. turbulency unstable flow of a liquid or gas
  16. durability permanence by virtue of the power to resist stress or force
  17. hot-air balloon balloon for travel through the air in a basket suspended below a large bag of heated air
  18. tripling increase by a factor of three
  19. turbine an engine that causes a bladed rotor to rotate
  20. top billing the advertisement of a star's name at the top of a theatrical poster