reign erign riegn iregn eirgn iergn regin ergin rgein grein egrin gerin rigen irgen rgien grien igren giren eigrn iegrn egirn geirn igern giern reing ering rieng ireng eirng ierng renig ernig rneig nreig enrig nerig rineg irneg rnieg nrieg inreg nireg einrg ienrg enirg neirg inerg nierg regni ergni rgeni greni egrni gerni rengi erngi rnegi nregi enrgi nergi rgnei grnei rngei nrgei gnrei ngrei egnri genri engri negri gneri ngeri rigne irgne rgine grine igrne girne ringe irnge rnige nrige inrge nirge rgnie grnie rngie nrgie gnrie ngrie ignre ginre ingre nigre gnire ngire eignr iegnr eginr geinr igenr gienr eingr iengr enigr neigr inegr niegr egnir genir engir negir gneir ngeir igner giner inger niger gnier ngier
Note: these 'words' (valid or invalid) are all the permutations of the word reign. These words are obtained by scrambling the letters in reign.