scour csour socur oscur cosur ocsur scuor csuor sucor uscor cusor ucsor soucr osucr suocr usocr ouscr uoscr cousr ocusr cuosr ucosr oucsr uocsr scoru csoru socru oscru cosru ocsru scrou csrou srcou rscou crsou rcsou sorcu osrcu srocu rsocu orscu roscu corsu ocrsu crosu rcosu orcsu rocsu scuro csuro sucro uscro cusro ucsro scruo csruo srcuo rscuo crsuo rcsuo surco usrco sruco rsuco ursco rusco curso ucrso cruso rcuso urcso rucso sourc osurc suorc usorc ousrc uosrc soruc osruc srouc rsouc orsuc rosuc suroc usroc sruoc rsuoc ursoc rusoc oursc uorsc orusc rousc urosc ruosc cours ocurs cuors ucors oucrs uocrs corus ocrus crous rcous orcus rocus curos ucros cruos rcuos urcos rucos ourcs uorcs orucs roucs urocs ruocs
Note: these 'words' (valid or invalid) are all the permutations of the word scour. These words are obtained by scrambling the letters in scour.