- addition
- annotation
- anoint
- anti
- antioxidant
- antitoxin
- ataxia
- attain
- attaint
- data
- dint
- ditto
- donation
- idiot
- initiation
- into
- intonation
- iota
- natant
- nation
- notation
- notion
- onto
- oxidant
- oxidation
- taint
- tannin
- tattoo
- taxa
- taxation
- taxi
- taxon
- tint
- titan
- toad
- toon
- toot
- toxin