1. in full action proceeding with full vigor
  2. inflection the patterns of stress and intonation in a language
  3. infliction the act of imposing something (as a tax or an embargo)
  4. inflation the act of filling something with air
  5. infraction a violation of a law or rule
  6. inculcation teaching or impressing upon the mind by frequent instruction
  7. implication something that is inferred
  8. intellection the process of using your mind to consider something carefully
  9. affliction a cause of great suffering and distress
  10. inflammation the state of being emotionally aroused and worked up
  11. infection the invasion of the body by pathogenic microorganisms
  12. invocation the act of appealing for help
  13. infarction localized necrosis resulting from obstruction of the blood supply
  14. invalidation a formal termination
  15. anovulation the absence of ovulation due to immaturity or post-maturity or pregnancy or oral contraceptive pills or dysfunction of the ovary
  16. infiltration a process in which individuals penetrate an area
  17. inflectional characterized by inflections indicating grammatical distinctions
  18. unification the act of making or becoming a single entity
  19. genuflection the act of bending the knees in worship or reverence
  20. involution the act of sharing in the activities of a group