1. endurance contest any long and arduous undertaking
  2. intrinsic belonging to a thing by its very nature
  3. intransigent impervious to pleas, persuasion, requests, or reason
  4. intransigence stubborn refusal to compromise or change
  5. insurance agent an agent who sells insurance
  6. entrancement a feeling of delight at being filled with wonder and enchantment
  7. enduringness permanence by virtue of the power to resist stress or force
  8. entrance money the fee charged for admission
  9. internal control an accounting procedure or system designed to promote efficiency or assure the implementation of a policy or safeguard assets or avoid fraud and error etc.
  10. intransigency the trait of being intransigent
  11. endurance riding riding for long hours over long distances
  12. bidding contest a series of competing bids
  13. entrance exam examination to determine a candidate's preparation for a course of studies
  14. endurance a state of surviving; remaining alive
  15. athletic contest a contest between athletes
  16. endodontist a dentist specializing in diseases of the dental pulp and nerve
  17. content satisfied or showing satisfaction with things as they are
  18. context the set of facts or circumstances that surround a situation
  19. internecine within a group or organization
  20. internet site a computer connected to the internet that maintains a series of web pages on the World Wide Web