- anion
- annotation
- anoint
- anti
- aria
- atria
- attain
- attrition
- initiation
- initiator
- into
- intonation
- intro
- iota
- iron
- irritant
- irritation
- janitor
- jinn
- jinni
- join
- joint
- narration
- nation
- ninja
- nitro
- noir
- nori
- notation
- notion
- onion
- oration
- oratorio
- rain
- raita
- rani
- ratio
- ration
- rioja
- riot
- rotation
- roti
- rotini
- taint
- tannin
- tarnation
- tiara
- tint
- titan
- titration
- tori
- torii
- tortoni
- train
- trait
- traitor
- trattoria
- trio
- triton