acers caers aecrs eacrs cears ecars acres cares arces races craes rcaes aercs earcs arecs raecs eracs reacs ceras ecras creas rceas ercas recas acesr caesr aecsr eacsr ceasr ecasr acser caser ascer sacer csaer scaer aescr eascr asecr saecr esacr seacr cesar ecsar csear scear escar secar acrse carse arcse racse crase rcase acsre casre ascre sacre csare scare arsce rasce asrce sarce rsace srace crsae rcsae csrae scrae rscae srcae aersc earsc aresc raesc erasc reasc aesrc easrc aserc saerc esarc searc arsec rasec asrec sarec rsaec sraec ersac resac esrac serac rseac sreac cersa ecrsa cresa rcesa ercsa recsa cesra ecsra csera scera escra secra crsea rcsea csrea screa rscea srcea ersca resca esrca serca rseca sreca
Note: these 'words' (valid or invalid) are all the permutations of the word acers. These words are obtained by scrambling the letters in acers.