vauch avuch vuach uvach auvch uavch vacuh avcuh vcauh cvauh acvuh cavuh vucah uvcah vcuah cvuah ucvah cuvah aucvh uacvh acuvh cauvh ucavh cuavh vauhc avuhc vuahc uvahc auvhc uavhc vahuc avhuc vhauc hvauc ahvuc havuc vuhac uvhac vhuac hvuac uhvac huvac auhvc uahvc ahuvc hauvc uhavc huavc vachu avchu vcahu cvahu acvhu cavhu vahcu avhcu vhacu hvacu ahvcu havcu vchau cvhau vhcau hvcau chvau hcvau achvu cahvu ahcvu hacvu chavu hcavu vucha uvcha vcuha cvuha ucvha cuvha vuhca uvhca vhuca hvuca uhvca huvca vchua cvhua vhcua hvcua chvua hcvua uchva cuhva uhcva hucva chuva hcuva auchv uachv acuhv cauhv ucahv cuahv auhcv uahcv ahucv haucv uhacv huacv achuv cahuv ahcuv hacuv chauv hcauv uchav cuhav uhcav hucav chuav hcuav
Note: these 'words' (valid or invalid) are all the permutations of the word vauch. These words are obtained by scrambling the letters in vauch.