fundi ufndi fnudi nfudi unfdi nufdi fudni ufdni fduni dfuni udfni dufni fndui nfdui fdnui dfnui ndfui dnfui undfi nudfi udnfi dunfi ndufi dnufi funid ufnid fnuid nfuid unfid nufid fuind ufind fiund ifund uifnd iufnd fniud nfiud finud ifnud nifud infud unifd nuifd uinfd iunfd niufd inufd fudin ufdin fduin dfuin udfin dufin fuidn ufidn fiudn ifudn uifdn iufdn fdiun dfiun fidun ifdun difun idfun udifn duifn uidfn iudfn diufn idufn fndiu nfdiu fdniu dfniu ndfiu dnfiu fnidu nfidu findu ifndu nifdu infdu fdinu dfinu fidnu ifdnu difnu idfnu ndifu dnifu nidfu indfu dinfu idnfu undif nudif udnif dunif nduif dnuif unidf nuidf uindf iundf niudf inudf udinf duinf uidnf iudnf diunf idunf ndiuf dniuf niduf induf dinuf idnuf
Note: these 'words' (valid or invalid) are all the permutations of the word fundi. These words are obtained by scrambling the letters in fundi.