tumor utmor tmuor mtuor umtor mutor tuomr utomr toumr otumr uotmr outmr tmour mtour tomur otmur motur omtur umotr muotr uomtr oumtr moutr omutr tumro utmro tmuro mturo umtro mutro turmo utrmo trumo rtumo urtmo rutmo tmruo mtruo trmuo rtmuo mrtuo rmtuo umrto murto urmto rumto mruto rmuto tuorm utorm tourm oturm uotrm outrm turom utrom truom rtuom urtom rutom torum otrum troum rtoum ortum rotum uortm ourtm urotm ruotm orutm routm tmoru mtoru tomru otmru motru omtru tmrou mtrou trmou rtmou mrtou rmtou tormu otrmu tromu rtomu ortmu rotmu mortu omrtu mrotu rmotu ormtu romtu umort muort uomrt oumrt mourt omurt umrot murot urmot rumot mruot rmuot uormt ourmt uromt ruomt orumt roumt morut omrut mrout rmout ormut romut
Note: these 'words' (valid or invalid) are all the permutations of the word tumor. These words are obtained by scrambling the letters in tumor.