cowed ocwed cwoed wcoed owced woced coewd ocewd ceowd ecowd oecwd eocwd cweod wceod cewod ecwod wecod ewcod owecd woecd oewcd eowcd weocd ewocd cowde ocwde cwode wcode owcde wocde codwe ocdwe cdowe dcowe odcwe docwe cwdoe wcdoe cdwoe dcwoe wdcoe dwcoe owdce wodce odwce dowce wdoce dwoce coedw ocedw ceodw ecodw oecdw eocdw codew ocdew cdoew dcoew odcew docew cedow ecdow cdeow dceow edcow decow oedcw eodcw odecw doecw edocw deocw cwedo wcedo cewdo ecwdo wecdo ewcdo cwdeo wcdeo cdweo dcweo wdceo dwceo cedwo ecdwo cdewo dcewo edcwo decwo wedco ewdco wdeco dweco edwco dewco owedc woedc oewdc eowdc weodc ewodc owdec wodec odwec dowec wdoec dwoec oedwc eodwc odewc doewc edowc deowc wedoc ewdoc wdeoc dweoc edwoc dewoc
Note: these 'words' (valid or invalid) are all the permutations of the word cowed. These words are obtained by scrambling the letters in cowed.