ranke arnke rnake nrake anrke narke rakne arkne rkane krane akrne karne rnkae nrkae rknae krnae nkrae knrae ankre nakre aknre kanre nkare knare ranek arnek rnaek nraek anrek narek raenk arenk reank erank aernk earnk rneak nreak renak ernak nerak enrak anerk naerk aenrk eanrk neark enark raken arken rkaen kraen akren karen raekn arekn reakn erakn aerkn earkn rkean krean rekan erkan keran ekran akern kaern aekrn eakrn kearn ekarn rnkea nrkea rknea krnea nkrea knrea rneka nreka renka ernka nerka enrka rkena krena rekna erkna kerna ekrna nkera knera nekra enkra kenra eknra anker naker akner kaner nkaer knaer anekr naekr aenkr eankr neakr enakr akenr kaenr aeknr eaknr keanr ekanr nkear knear nekar enkar kenar eknar
Note: these 'words' (valid or invalid) are all the permutations of the word ranke. These words are obtained by scrambling the letters in ranke.