muxi umxi mxui xmui uxmi xumi muix umix miux imux uimx iumx mxiu xmiu mixu imxu ximu ixmu uxim xuim uixm iuxm xium ixum
Note: these 'words' (valid or invalid) are all the permutations of the word muxi. These words are obtained by scrambling the letters in muxi.