gagaku aggaku ggaaku ggaaku aggaku gagaku gaagku agagku gaagku agagku aaggku aaggku ggaaku ggaaku gagaku aggaku gagaku aggaku agagku gaagku aaggku aaggku gaagku agagku gagkau aggkau ggakau ggakau aggkau gagkau gakgau agkgau gkagau kgagau akggau kaggau ggkaau ggkaau gkgaau kggaau gkgaau kggaau agkgau gakgau akggau kaggau gkagau kgagau gaakgu agakgu gaakgu agakgu aagkgu aagkgu gakagu agkagu gkaagu kgaagu akgagu kagagu gakagu agkagu gkaagu kgaagu akgagu kagagu aakggu aakggu akaggu kaaggu akaggu kaaggu ggakau ggakau gagkau aggkau gagkau aggkau ggkaau ggkaau gkgaau kggaau gkgaau kggaau gakgau agkgau gkagau kgagau akggau kaggau gakgau agkgau gkagau kgagau akggau kaggau agakgu gaakgu aagkgu aagkgu gaakgu agakgu agkagu gakagu akgagu kagagu gkaagu kgaagu aakggu aakggu akaggu kaaggu akaggu kaaggu gakagu agkagu gkaagu kgaagu akgagu kagagu gagauk aggauk ggaauk ggaauk aggauk gagauk gaaguk agaguk gaaguk agaguk aagguk aagguk ggaauk ggaauk gagauk aggauk gagauk aggauk agaguk gaaguk aagguk aagguk gaaguk agaguk gaguak agguak ggauak ggauak agguak gaguak gaugak agugak guagak ugagak auggak uaggak gguaak gguaak gugaak uggaak gugaak uggaak agugak gaugak auggak uaggak guagak ugagak gaaugk agaugk gaaugk agaugk aagugk aagugk gauagk aguagk guaagk ugaagk augagk uagagk gauagk aguagk guaagk ugaagk augagk uagagk aauggk aauggk auaggk uaaggk auaggk uaaggk ggauak ggauak gaguak agguak gaguak agguak gguaak gguaak gugaak uggaak gugaak uggaak gaugak agugak guagak ugagak auggak uaggak gaugak agugak guagak ugagak auggak uaggak agaugk gaaugk aagugk aagugk gaaugk agaugk aguagk gauagk augagk uagagk guaagk ugaagk aauggk aauggk auaggk uaaggk auaggk uaaggk gauagk aguagk guaagk ugaagk augagk uagagk gagkua aggkua ggakua ggakua aggkua gagkua gakgua agkgua gkagua kgagua akggua kaggua ggkaua ggkaua gkgaua kggaua gkgaua kggaua agkgua gakgua akggua kaggua gkagua kgagua gaguka agguka ggauka ggauka agguka gaguka gaugka agugka guagka ugagka auggka uaggka gguaka gguaka gugaka uggaka gugaka uggaka agugka gaugka auggka uaggka guagka ugagka gakuga agkuga gkauga kgauga akguga kaguga gaukga agukga guakga ugakga augkga uagkga gkuaga kguaga gukaga ugkaga kugaga ukgaga akugga kaugga aukgga uakgga kuagga ukagga ggkuaa ggkuaa gkguaa kgguaa gkguaa kgguaa ggukaa ggukaa gugkaa uggkaa gugkaa uggkaa gkugaa kgugaa gukgaa ugkgaa kuggaa ukggaa gkugaa kgugaa gukgaa ugkgaa kuggaa ukggaa agkuga gakuga akguga kaguga gkauga kgauga agukga gaukga augkga uagkga guakga ugakga akugga kaugga aukgga uakgga kuagga ukagga gkuaga kguaga gukaga ugkaga kugaga ukgaga gaakug agakug gaakug agakug aagkug aagkug gakaug agkaug gkaaug kgaaug akgaug kagaug gakaug agkaug gkaaug kgaaug akgaug kagaug aakgug aakgug akagug kaagug akagug kaagug gaaukg agaukg gaaukg agaukg aagukg aagukg gauakg aguakg guaakg ugaakg augakg uagakg gauakg aguakg guaakg ugaakg augakg uagakg aaugkg aaugkg auagkg uaagkg auagkg uaagkg gakuag agkuag gkauag kgauag akguag kaguag gaukag agukag guakag ugakag augkag uagkag gkuaag kguaag gukaag ugkaag kugaag ukgaag akugag kaugag aukgag uakgag kuagag ukagag gakuag agkuag gkauag kgauag akguag kaguag gaukag agukag guakag ugakag augkag uagkag gkuaag kguaag gukaag ugkaag kugaag ukgaag akugag kaugag aukgag uakgag kuagag ukagag aakugg aakugg akaugg kaaugg akaugg kaaugg aaukgg aaukgg auakgg uaakgg auakgg uaakgg akuagg kauagg aukagg uakagg kuaagg ukaagg akuagg kauagg aukagg uakagg kuaagg ukaagg ggakua ggakua gagkua aggkua gagkua aggkua ggkaua ggkaua gkgaua kggaua gkgaua kggaua gakgua agkgua gkagua kgagua akggua kaggua gakgua agkgua gkagua kgagua akggua kaggua ggauka ggauka gaguka agguka gaguka agguka gguaka gguaka gugaka uggaka gugaka uggaka gaugka agugka guagka ugagka auggka uaggka gaugka agugka guagka ugagka auggka uaggka ggkuaa ggkuaa gkguaa kgguaa gkguaa kgguaa ggukaa ggukaa gugkaa uggkaa gugkaa uggkaa gkugaa kgugaa gukgaa ugkgaa kuggaa ukggaa gkugaa kgugaa gukgaa ugkgaa kuggaa ukggaa gakuga agkuga gkauga kgauga akguga kaguga gaukga agukga guakga ugakga augkga uagkga gkuaga kguaga gukaga ugkaga kugaga ukgaga akugga kaugga aukgga uakgga kuagga ukagga gakuga agkuga gkauga kgauga akguga kaguga gaukga agukga guakga ugakga augkga uagkga gkuaga kguaga gukaga ugkaga kugaga ukgaga akugga kaugga aukgga uakgga kuagga ukagga agakug gaakug aagkug aagkug gaakug agakug agkaug gakaug akgaug kagaug gkaaug kgaaug aakgug aakgug akagug kaagug akagug kaagug gakaug agkaug gkaaug kgaaug akgaug kagaug agaukg gaaukg aagukg aagukg gaaukg agaukg aguakg gauakg augakg uagakg guaakg ugaakg aaugkg aaugkg auagkg uaagkg auagkg uaagkg gauakg aguakg guaakg ugaakg augakg uagakg agkuag gakuag akguag kaguag gkauag kgauag agukag gaukag augkag uagkag guakag ugakag akugag kaugag aukgag uakgag kuagag ukagag gkuaag kguaag gukaag ugkaag kugaag ukgaag aakugg aakugg akaugg kaaugg akaugg kaaugg aaukgg aaukgg auakgg uaakgg auakgg uaakgg akuagg kauagg aukagg uakagg kuaagg ukaagg akuagg kauagg aukagg uakagg kuaagg ukaagg gakuag agkuag gkauag kgauag akguag kaguag gaukag agukag guakag ugakag augkag uagkag gkuaag kguaag gukaag ugkaag kugaag ukgaag akugag kaugag aukgag uakgag kuagag ukagag
Note: these 'words' (valid or invalid) are all the permutations of the word gagaku. These words are obtained by scrambling the letters in gagaku.