1. iron blue slightly purplish or bluish dark grey
  2. iron boot an instrument of torture that is used to heat or crush the foot and leg
  3. Grenoble a city in southeastern France on the Isere River
  4. ignoble dishonorable in character or purpose
  5. ironically in a manner characterized by incongruity or unexpectedness
  6. irascible quickly aroused to anger
  7. iron heel an instrument of torture that is used to heat or crush the foot and leg
  8. irritable easily annoyed
  9. amenable disposed or willing to comply
  10. burnable capable of burning
  11. ironical marked by incongruity between what is expected and what is
  12. ignobly in a currish manner; meanspiritedly
  13. air bubble a bubble of air
  14. Eurobabble the jargon of European community documents and regulations
  15. iron putty a cement resembling putty
  16. unrenewable that can not be renewed
  17. Aaron Burr United States politician who served as vice president under Jefferson; he mortally wounded his political rival Alexander Hamilton in a duel and fled south (1756-1836)
  18. ironclad inflexibly entrenched and unchangeable
  19. alienable transferable to another owner
  20. irritably in a petulant manner

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