kayak akyak kyaak ykaak aykak yakak kaayk akayk kaayk akayk aakyk aakyk kyaak ykaak kayak akyak yakak aykak ayakk yaakk aaykk aaykk yaakk ayakk kayka akyka kyaka ykaka aykka yakka kakya akkya kkaya kkaya akkya kakya kykaa ykkaa kkyaa kkyaa ykkaa kykaa aykka yakka akyka kayka ykaka kyaka kaaky akaky kaaky akaky aakky aakky kakay akkay kkaay kkaay akkay kakay kakay akkay kkaay kkaay akkay kakay aakky aakky akaky kaaky akaky kaaky kyaka ykaka kayka akyka yakka aykka kykaa ykkaa kkyaa kkyaa ykkaa kykaa kakya akkya kkaya kkaya akkya kakya yakka aykka ykaka kyaka akyka kayka ayakk yaakk aaykk aaykk yaakk ayakk aykak yakak akyak kayak ykaak kyaak aakyk aakyk akayk kaayk akayk kaayk yakak aykak ykaak kyaak akyak kayak
Note: these 'words' (valid or invalid) are all the permutations of the word kayak. These words are obtained by scrambling the letters in kayak.