faugh afugh fuagh ufagh aufgh uafgh faguh afguh fgauh gfauh agfuh gafuh fugah ufgah fguah gfuah ugfah gufah augfh uagfh agufh gaufh ugafh guafh fauhg afuhg fuahg ufahg aufhg uafhg fahug afhug fhaug hfaug ahfug hafug fuhag ufhag fhuag hfuag uhfag hufag auhfg uahfg ahufg haufg uhafg huafg faghu afghu fgahu gfahu agfhu gafhu fahgu afhgu fhagu hfagu ahfgu hafgu fghau gfhau fhgau hfgau ghfau hgfau aghfu gahfu ahgfu hagfu ghafu hgafu fugha ufgha fguha gfuha ugfha gufha fuhga ufhga fhuga hfuga uhfga hufga fghua gfhua fhgua hfgua ghfua hgfua ughfa guhfa uhgfa hugfa ghufa hgufa aughf uaghf aguhf gauhf ugahf guahf auhgf uahgf ahugf haugf uhagf huagf aghuf gahuf ahguf haguf ghauf hgauf ughaf guhaf uhgaf hugaf ghuaf hguaf
Note: these 'words' (valid or invalid) are all the permutations of the word faugh. These words are obtained by scrambling the letters in faugh.