tuner utner tnuer ntuer unter nuter tuenr utenr teunr etunr uetnr eutnr tneur nteur tenur etnur netur entur unetr nuetr uentr euntr neutr enutr tunre utnre tnure nture untre nutre turne utrne trune rtune urtne rutne tnrue ntrue trnue rtnue nrtue rntue unrte nurte urnte runte nrute rnute tuern utern teurn eturn uetrn eutrn turen utren truen rtuen urten ruten terun etrun treun rteun ertun retun uertn eurtn uretn ruetn erutn reutn tneru nteru tenru etnru netru entru tnreu ntreu trneu rtneu nrteu rnteu ternu etrnu trenu rtenu ertnu retnu nertu enrtu nretu rnetu erntu rentu unert nuert uenrt eunrt neurt enurt unret nuret urnet runet nruet rnuet uernt eurnt urent ruent erunt reunt nerut enrut nreut rneut ernut renut
Note: these 'words' (valid or invalid) are all the permutations of the word tuner. These words are obtained by scrambling the letters in tuner.