List of Collective Nouns: i

1. illusion
   1. an illusion of magicians
   2. an illusion of painters
2. impatience
   1. an impatience of wives
3. implausibility
   1. an implausibility of gnus
4. incredulity
   1. an incredulity of cuckolds
5. infestation
   1. an infestation of lice
6. intrigue
   1. an intrigue of council members
7. intrusion
   1. an intrusion of cockroaches