dhaks hdaks dahks adhks hadks ahdks dhkas hdkas dkhas kdhas hkdas khdas dakhs adkhs dkahs kdahs akdhs kadhs hakds ahkds hkads khads akhds kahds dhask hdask dahsk adhsk hadsk ahdsk dhsak hdsak dshak sdhak hsdak shdak dashk adshk dsahk sdahk asdhk sadhk hasdk ahsdk hsadk shadk ashdk sahdk dhksa hdksa dkhsa kdhsa hkdsa khdsa dhska hdska dshka sdhka hsdka shdka dksha kdsha dskha sdkha ksdha skdha hksda khsda hskda shkda kshda skhda daksh adksh dkash kdash akdsh kadsh daskh adskh dsakh sdakh asdkh sadkh dksah kdsah dskah sdkah ksdah skdah aksdh kasdh askdh sakdh ksadh skadh haksd ahksd hkasd khasd akhsd kahsd haskd ahskd hsakd shakd ashkd sahkd hksad khsad hskad shkad kshad skhad akshd kashd askhd sakhd ksahd skahd
Note: these 'words' (valid or invalid) are all the permutations of the word dhaks. These words are obtained by scrambling the letters in dhaks.