Is. 
abbreviation
1 (also Isa.) Isaiah (in biblical references).
2Island(s).
3Isle(s).
- informatively
- informativeness
- informatization
- informator
- informator choristarum
- informatorily
- informatory
- informavore
- informed
- informed consent
- informedly
- informedness
- informer
- informercial
- informership
- informingly
- informity
- informosome
- informous
- informulable
- Infortiatum
- infortitude
- infortunate
- infortunately
- infortune