mucid umcid mcuid cmuid ucmid cumid muicd umicd miucd imucd uimcd iumcd mciud cmiud micud imcud cimud icmud ucimd cuimd uicmd iucmd ciumd icumd mucdi umcdi mcudi cmudi ucmdi cumdi mudci umdci mduci dmuci udmci dumci mcdui cmdui mdcui dmcui cdmui dcmui ucdmi cudmi udcmi ducmi cdumi dcumi muidc umidc miudc imudc uimdc iumdc mudic umdic mduic dmuic udmic dumic miduc imduc mdiuc dmiuc idmuc dimuc uidmc iudmc udimc duimc idumc diumc mcidu cmidu micdu imcdu cimdu icmdu mcdiu cmdiu mdciu dmciu cdmiu dcmiu midcu imdcu mdicu dmicu idmcu dimcu cidmu icdmu cdimu dcimu idcmu dicmu ucidm cuidm uicdm iucdm ciudm icudm ucdim cudim udcim ducim cduim dcuim uidcm iudcm udicm duicm iducm diucm cidum icdum cdium dcium idcum dicum
Note: these 'words' (valid or invalid) are all the permutations of the word mucid. These words are obtained by scrambling the letters in mucid.