icers ciers iecrs eicrs ceirs ecirs icres cires irces rices cries rcies iercs eircs irecs riecs erics reics ceris ecris creis rceis ercis recis icesr ciesr iecsr eicsr ceisr ecisr icser ciser iscer sicer csier scier iescr eiscr isecr siecr esicr seicr cesir ecsir cseir sceir escir secir icrse cirse ircse ricse crise rcise icsre cisre iscre sicre csire scire irsce risce isrce sirce rsice srice crsie rcsie csrie scrie rscie srcie iersc eirsc iresc riesc erisc reisc iesrc eisrc iserc sierc esirc seirc irsec risec isrec sirec rsiec sriec ersic resic esric seric rseic sreic cersi ecrsi cresi rcesi ercsi recsi cesri ecsri cseri sceri escri secri crsei rcsei csrei screi rscei srcei ersci resci esrci serci rseci sreci
Note: these 'words' (valid or invalid) are all the permutations of the word icers. These words are obtained by scrambling the letters in icers.