I字母开头的单词或词组(第26页)：
- isthmus
- itinerant
- itinerary
- ivory
- icing
- idol
- idolatrize
- idolize
- illegible
- immortal
- imperil
- illiberal
- illustrious
- imbecile
- impend
- imprecation
- imputation
- impute
- incertitude
- incisor
- incongruent
- incorporeal
- incrustation
- indite
- inebriate
- ineffaceable
- ineligible
- inexpedient
- inexpiable
- insolate
- ingress
- infatuate
- infatuated
- infernal
- infliction
- informer
- insane
- inscription
- insanity
- insouciance
- installment
- insuperable
- interdisciplinary
- interlace