vouch ovuch vuoch uvoch ouvch uovch vocuh ovcuh vcouh cvouh ocvuh covuh vucoh uvcoh vcuoh cvuoh ucvoh cuvoh oucvh uocvh ocuvh couvh ucovh cuovh vouhc ovuhc vuohc uvohc ouvhc uovhc vohuc ovhuc vhouc hvouc ohvuc hovuc vuhoc uvhoc vhuoc hvuoc uhvoc huvoc ouhvc uohvc ohuvc houvc uhovc huovc vochu ovchu vcohu cvohu ocvhu covhu vohcu ovhcu vhocu hvocu ohvcu hovcu vchou cvhou vhcou hvcou chvou hcvou ochvu cohvu ohcvu hocvu chovu hcovu vucho uvcho vcuho cvuho ucvho cuvho vuhco uvhco vhuco hvuco uhvco huvco vchuo cvhuo vhcuo hvcuo chvuo hcvuo uchvo cuhvo uhcvo hucvo chuvo hcuvo ouchv uochv ocuhv couhv ucohv cuohv ouhcv uohcv ohucv houcv uhocv huocv ochuv cohuv ohcuv hocuv chouv hcouv uchov cuhov uhcov hucov chuov hcuov
Note: these 'words' (valid or invalid) are all the permutations of the word vouch. These words are obtained by scrambling the letters in vouch.