rufit urfit rfuit fruit ufrit furit ruift urift riuft iruft uirft iurft rfiut friut rifut irfut firut ifrut ufirt fuirt uifrt iufrt fiurt ifurt rufti urfti rfuti fruti ufrti furti rutfi urtfi rtufi trufi utrfi turfi rftui frtui rtfui trfui ftrui tfrui uftri futri utfri tufri fturi tfuri ruitf uritf riutf irutf uirtf iurtf rutif urtif rtuif truif utrif turif rituf irtuf rtiuf triuf itruf tiruf uitrf iutrf utirf tuirf iturf tiurf rfitu fritu riftu irftu firtu ifrtu rftiu frtiu rtfiu trfiu ftriu tfriu ritfu irtfu rtifu trifu itrfu tirfu fitru iftru ftiru tfiru itfru tifru ufitr fuitr uiftr iuftr fiutr ifutr uftir futir utfir tufir ftuir tfuir uitfr iutfr utifr tuifr itufr tiufr fitur iftur ftiur tfiur itfur tifur
Note: these 'words' (valid or invalid) are all the permutations of the word rufit. These words are obtained by scrambling the letters in rufit.