coush ocush cuosh ucosh oucsh uocsh cosuh ocsuh csouh scouh oscuh socuh cusoh ucsoh csuoh scuoh uscoh sucoh ousch uosch osuch souch usoch suoch couhs ocuhs cuohs ucohs ouchs uochs cohus ochus chous hcous ohcus hocus cuhos uchos chuos hcuos uhcos hucos ouhcs uohcs ohucs houcs uhocs huocs coshu ocshu csohu scohu oschu sochu cohsu ochsu chosu hcosu ohcsu hocsu cshou schou chsou hcsou shcou hscou oshcu sohcu ohscu hoscu shocu hsocu cusho ucsho csuho scuho uscho sucho cuhso uchso chuso hcuso uhcso hucso cshuo schuo chsuo hcsuo shcuo hscuo ushco suhco uhsco husco shuco hsuco oushc uoshc osuhc souhc usohc suohc ouhsc uohsc ohusc housc uhosc huosc oshuc sohuc ohsuc hosuc shouc hsouc ushoc suhoc uhsoc husoc shuoc hsuoc
Note: these 'words' (valid or invalid) are all the permutations of the word coush. These words are obtained by scrambling the letters in coush.