chunk hcunk cuhnk uchnk hucnk uhcnk chnuk hcnuk cnhuk nchuk hncuk nhcuk cunhk ucnhk cnuhk ncuhk unchk nuchk hunck uhnck hnuck nhuck unhck nuhck chukn hcukn cuhkn uchkn huckn uhckn chkun hckun ckhun kchun hkcun khcun cukhn uckhn ckuhn kcuhn ukchn kuchn hukcn uhkcn hkucn khucn ukhcn kuhcn chnku hcnku cnhku nchku hncku nhcku chknu hcknu ckhnu kchnu hkcnu khcnu cnkhu nckhu cknhu kcnhu nkchu knchu hnkcu nhkcu hkncu khncu nkhcu knhcu cunkh ucnkh cnukh ncukh unckh nuckh cuknh ucknh ckunh kcunh ukcnh kucnh cnkuh nckuh cknuh kcnuh nkcuh kncuh unkch nukch uknch kunch nkuch knuch hunkc uhnkc hnukc nhukc unhkc nuhkc huknc uhknc hkunc khunc ukhnc kuhnc hnkuc nhkuc hknuc khnuc nkhuc knhuc unkhc nukhc uknhc kunhc nkuhc knuhc
Note: these 'words' (valid or invalid) are all the permutations of the word chunk. These words are obtained by scrambling the letters in chunk.