1. involvement the act of sharing in the activities of a group
  2. inflammable easily ignited
  3. envelope a flat container for a letter or thin package
  4. invaluable having incalculable monetary or intellectual worth
  5. involved connected by participation or association or use
  6. involve contain as a part
  7. environment the totality of surrounding conditions
  8. envelop enclose or enfold completely with or as if with a covering
  9. Calophyllum calaba West Indian tree having racemes of fragrant white flowers and yielding a durable timber and resinous juice
  10. film clip a strip of motion picture film used in a telecast
  11. invulnerable immune to attack; impregnable
  12. infallible incapable of failure or error
  13. unfulfilled of persons; marked by failure to realize full potentialities
  14. inflection the patterns of stress and intonation in a language
  15. enslavement the act of making slaves of your captives
  16. inflammability the quality of being easily ignited and burning rapidly
  17. unfailingly without fail
  18. inflammation the state of being emotionally aroused and worked up
  19. inflammatory arousing to action or rebellion
  20. invulnerability the property of being invulnerable