voids ovids viods ivods oivds iovds vodis ovdis vdois dvois odvis dovis vidos ivdos vdios dvios idvos divos oidvs iodvs odivs doivs idovs diovs voisd ovisd viosd ivosd oivsd iovsd vosid ovsid vsoid svoid osvid sovid visod ivsod vsiod sviod isvod sivod oisvd iosvd osivd soivd isovd siovd vodsi ovdsi vdosi dvosi odvsi dovsi vosdi ovsdi vsodi svodi osvdi sovdi vdsoi dvsoi vsdoi svdoi dsvoi sdvoi odsvi dosvi osdvi sodvi dsovi sdovi vidso ivdso vdiso dviso idvso divso visdo ivsdo vsido svido isvdo sivdo vdsio dvsio vsdio svdio dsvio sdvio idsvo disvo isdvo sidvo dsivo sdivo oidsv iodsv odisv doisv idosv diosv oisdv iosdv osidv soidv isodv siodv odsiv dosiv osdiv sodiv dsoiv sdoiv idsov disov isdov sidov dsiov sdiov
Note: these 'words' (valid or invalid) are all the permutations of the word voids. These words are obtained by scrambling the letters in voids.