roins orins rions irons oirns iorns ronis ornis rnois nrois onris noris rinos irnos rnios nrios inros niros oinrs ionrs onirs noirs inors niors roisn orisn riosn irosn oirsn iorsn rosin orsin rsoin sroin osrin sorin rison irson rsion srion isron siron oisrn iosrn osirn soirn isorn siorn ronsi ornsi rnosi nrosi onrsi norsi rosni orsni rsoni sroni osrni sorni rnsoi nrsoi rsnoi srnoi nsroi snroi onsri nosri osnri sonri nsori snori rinso irnso rniso nriso inrso nirso risno irsno rsino srino isrno sirno rnsio nrsio rsnio srnio nsrio snrio insro nisro isnro sinro nsiro sniro oinsr ionsr onisr noisr inosr niosr oisnr iosnr osinr soinr isonr sionr onsir nosir osnir sonir nsoir snoir insor nisor isnor sinor nsior snior
Note: these 'words' (valid or invalid) are all the permutations of the word roins. These words are obtained by scrambling the letters in roins.