ratio artio rtaio traio atrio tario raito arito riato irato airto iarto rtiao triao ritao irtao tirao itrao atiro tairo aitro iatro tiaro itaro ratoi artoi rtaoi traoi atroi taroi raoti aroti roati orati aorti oarti rtoai troai rotai ortai torai otrai atori taori aotri oatri toari otari raiot ariot riaot iraot airot iarot raoit aroit roait orait aorit oarit rioat iroat roiat oriat iorat oirat aiort iaort aoirt oairt ioart oiart rtioa trioa ritoa irtoa tiroa itroa rtoia troia rotia ortia toria otria riota irota roita orita iorta oirta tiora itora toira otira iotra oitra atior taior aitor iator tiaor itaor atoir taoir aotir oatir toair otair aiotr iaotr aoitr oaitr ioatr oiatr tioar itoar toiar otiar iotar oitar
Note: these 'words' (valid or invalid) are all the permutations of the word ratio. These words are obtained by scrambling the letters in ratio.