onned noned onned noned nnoed nnoed onend noend oennd eonnd neond enond onend noend oennd eonnd neond enond nneod nneod nenod ennod nenod ennod onnde nonde onnde nonde nnode nnode ondne nodne odnne donne ndone dnone ondne nodne odnne donne ndone dnone nndoe nndoe ndnoe dnnoe ndnoe dnnoe onedn noedn oendn eondn neodn enodn onden noden odnen donen ndoen dnoen oednn eodnn odenn doenn edonn deonn nedon endon ndeon dneon ednon denon onedn noedn oendn eondn neodn enodn onden noden odnen donen ndoen dnoen oednn eodnn odenn doenn edonn deonn nedon endon ndeon dneon ednon denon nnedo nnedo nendo enndo nendo enndo nndeo nndeo ndneo dnneo ndneo dnneo nedno endno ndeno dneno ednno denno nedno endno ndeno dneno ednno denno
Note: these 'words' (valid or invalid) are all the permutations of the word onned. These words are obtained by scrambling the letters in onned.