neigh enigh niegh inegh eingh iengh negih engih ngeih gneih egnih genih nigeh ingeh ngieh gnieh igneh gineh eignh iegnh eginh geinh igenh gienh neihg enihg niehg inehg einhg ienhg nehig enhig nheig hneig ehnig henig niheg inheg nhieg hnieg ihneg hineg eihng iehng ehing heing iheng hieng neghi enghi ngehi gnehi egnhi genhi nehgi enhgi nhegi hnegi ehngi hengi nghei gnhei nhgei hngei ghnei hgnei eghni gehni ehgni hegni gheni hgeni nighe inghe ngihe gnihe ignhe ginhe nihge inhge nhige hnige ihnge hinge nghie gnhie nhgie hngie ghnie hgnie ighne gihne ihgne higne ghine hgine eighn ieghn egihn geihn igehn giehn eihgn iehgn ehign heign ihegn hiegn eghin gehin ehgin hegin ghein hgein ighen gihen ihgen higen ghien hgien
Note: these 'words' (valid or invalid) are all the permutations of the word neigh. These words are obtained by scrambling the letters in neigh.