munch umnch mnuch nmuch unmch numch mucnh umcnh mcunh cmunh ucmnh cumnh mncuh nmcuh mcnuh cmnuh ncmuh cnmuh uncmh nucmh ucnmh cunmh ncumh cnumh munhc umnhc mnuhc nmuhc unmhc numhc muhnc umhnc mhunc hmunc uhmnc humnc mnhuc nmhuc mhnuc hmnuc nhmuc hnmuc unhmc nuhmc uhnmc hunmc nhumc hnumc muchn umchn mcuhn cmuhn ucmhn cumhn muhcn umhcn mhucn hmucn uhmcn humcn mchun cmhun mhcun hmcun chmun hcmun uchmn cuhmn uhcmn hucmn chumn hcumn mnchu nmchu mcnhu cmnhu ncmhu cnmhu mnhcu nmhcu mhncu hmncu nhmcu hnmcu mchnu cmhnu mhcnu hmcnu chmnu hcmnu nchmu cnhmu nhcmu hncmu chnmu hcnmu unchm nuchm ucnhm cunhm ncuhm cnuhm unhcm nuhcm uhncm huncm nhucm hnucm uchnm cuhnm uhcnm hucnm chunm hcunm nchum cnhum nhcum hncum chnum hcnum
Note: these 'words' (valid or invalid) are all the permutations of the word munch. These words are obtained by scrambling the letters in munch.