1. invisibleness the quality of not being perceivable by the eye
  2. invisibility the quality of not being perceivable by the eye
  3. invisible balance the difference in value over a period of time of a country's imports and exports of services and payments of property incomes
  4. espionage network a network of spies
  5. neural network computer architecture in which processors are connected in a manner suggestive of connections between neurons; can learn by trial and error
  6. involuntary not subject to the control of the will
  7. interplanetary between or among planets
  8. invisible impossible or nearly impossible to see
  9. in fiscal matters in financial matters
  10. inventory a detailed list of all the items in stock
  11. invigilator someone who watches examination candidates to prevent cheating
  12. old boy network an exclusive informal network linking members of a social class or profession or organization in order to provide connections and information and favors (especially in business or politics)
  13. insurable interest an interest in a person or thing that will support the issuance of an insurance policy; an interest in the survival of the insured or in the preservation of the thing that is insured
  14. undisciplined not subjected to discipline
  15. unvoluntary not subject to the control of the will
  16. investment laying out money or capital in an enterprise
  17. inventor someone who is the first to think of or make something
  18. indelible ink ink that cannot be erased or washed away
  19. invariableness the quality of being resistant to variation
  20. involuntarily against your will