corse ocrse crose rcose orcse rocse cosre ocsre csore score oscre socre crsoe rcsoe csroe scroe rscoe srcoe orsce rosce osrce sorce rsoce sroce cores ocres croes rcoes orces roces coers ocers ceors ecors oecrs eocrs creos rceos ceros ecros recos ercos orecs roecs oercs eorcs reocs erocs coser ocser csoer scoer oscer socer coesr ocesr ceosr ecosr oecsr eocsr cseor sceor cesor ecsor secor escor osecr soecr oescr eoscr seocr esocr crseo rcseo csreo screo rsceo srceo creso rceso cerso ecrso recso ercso csero scero cesro ecsro secro escro rseco sreco resco ersco serco esrco orsec rosec osrec sorec rsoec sroec oresc roesc oersc eorsc reosc erosc oserc soerc oesrc eosrc seorc esorc rseoc sreoc resoc ersoc seroc esroc
Note: these 'words' (valid or invalid) are all the permutations of the word corse. These words are obtained by scrambling the letters in corse.