dunny udnny dnuny nduny undny nudny dunny udnny dnuny nduny undny nudny dnnuy ndnuy dnnuy ndnuy nnduy nnduy unndy nundy unndy nundy nnudy nnudy dunyn udnyn dnuyn nduyn undyn nudyn duynn udynn dyunn ydunn uydnn yudnn dnyun ndyun dynun ydnun nydun yndun unydn nuydn uyndn yundn nyudn ynudn dunyn udnyn dnuyn nduyn undyn nudyn duynn udynn dyunn ydunn uydnn yudnn dnyun ndyun dynun ydnun nydun yndun unydn nuydn uyndn yundn nyudn ynudn dnnyu ndnyu dnnyu ndnyu nndyu nndyu dnynu ndynu dynnu ydnnu nydnu yndnu dnynu ndynu dynnu ydnnu nydnu yndnu nnydu nnydu nyndu ynndu nyndu ynndu unnyd nunyd unnyd nunyd nnuyd nnuyd unynd nuynd uynnd yunnd nyund ynund unynd nuynd uynnd yunnd nyund ynund nnyud nnyud nynud ynnud nynud ynnud
Note: these 'words' (valid or invalid) are all the permutations of the word dunny. These words are obtained by scrambling the letters in dunny.