urnal runal unral nural rnual nrual uranl ruanl uarnl aurnl raunl arunl unarl nuarl uanrl aunrl naurl anurl rnaul nraul ranul arnul narul anrul urnla runla unrla nurla rnula nrula urlna rulna ulrna lurna rluna lruna unlra nulra ulnra lunra nlura lnura rnlua nrlua rlnua lrnua nlrua lnrua uraln rualn uarln aurln rauln aruln urlan rulan ulran luran rluan lruan ualrn aulrn ularn luarn alurn laurn ralun arlun rlaun lraun alrun larun unalr nualr uanlr aunlr naulr anulr unlar nular ulnar lunar nluar lnuar ualnr aulnr ulanr luanr alunr launr nalur anlur nlaur lnaur alnur lanur rnalu nralu ranlu arnlu narlu anrlu rnlau nrlau rlnau lrnau nlrau lnrau ralnu arlnu rlanu lranu alrnu larnu nalru anlru nlaru lnaru alnru lanru
Note: these 'words' (valid or invalid) are all the permutations of the word urnal. These words are obtained by scrambling the letters in urnal.