1. investigate conduct an inquiry of
  2. investigation an inquiry into unfamiliar or questionable activities
  3. investigator someone who inquires carefully
  4. investigative designed to find information or ascertain facts
  5. investiture the ceremonial promotion of a person to an office or rank
  6. investigatory designed to find information or ascertain facts
  7. invest lay out money or resources in an enterprise
  8. investing the act of investing
  9. investor someone who commits capital to gain financial returns
  10. investment laying out money or capital in an enterprise
  11. infestation the state of being invaded or overrun by parasites
  12. investigating the work of inquiring into something thoroughly and systematically
  13. inveterate habitual
  14. manifest clearly revealed to the mind or the senses or judgment
  15. infest occupy in large numbers or live on a host
  16. infuscate darken with a brownish tinge, as of insect wings
  17. invertase an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose
  18. envisage form a mental image of something that is not present
  19. invective abusive language used to express blame or censure
  20. investors club a club of small investors who buy and sell securities jointly

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