nerol enrol nreol rneol ernol renol neorl enorl noerl onerl eonrl oenrl nroel rnoel norel onrel ronel ornel eronl reonl eornl oernl roenl orenl nerlo enrlo nrelo rnelo ernlo renlo nelro enlro nlero lnero elnro lenro nrleo rnleo nlreo lnreo rlneo lrneo erlno relno elrno lerno rleno lreno neolr enolr noelr onelr eonlr oenlr nelor enlor nleor lneor elnor lenor noler onler nloer lnoer olner loner eolnr oelnr elonr leonr olenr loenr nrole rnole norle onrle ronle ornle nrloe rnloe nlroe lnroe rlnoe lrnoe nolre onlre nlore lnore olnre lonre rolne orlne rlone lrone olrne lorne eroln reoln eorln oerln roeln oreln erlon relon elron leron rleon lreon eolrn oelrn elorn leorn olern loern rolen orlen rloen lroen olren loren
Note: these 'words' (valid or invalid) are all the permutations of the word nerol. These words are obtained by scrambling the letters in nerol.