iniistius inquirist inquirous inquisitr insistson insitions intiornis intorsion intortion intourist introitus introsort intrusion intuition inustions inuttitut isonitro- isotornis isrutis issisisis ninstints niutuiqin non-union nontutors notionist notorious notturnos nurturist nutrition orrisroot orto-surt ototriton ottottrio ouistitis quintroon quirinius rintintin root-noun routinist runrunrun siissisoq sinistrin sinistro- sinistron sinusitis sisinnius sistrurus sonourous sortition sous-sous strointsi strousion stuntnuts sunturion susurrous tinisinit tornquist torontron torturous tourstour trinitrin trinitro- trinitron trit-trot tritonous trntrntrn trottoirs trunnions tsinnorit tsountsou tuotuorou turn-outs turnsinto turnsiton turnsonto tutiorist tuttototo tutuirons unionists unionsuit unisonous unittrust ustorious