siddha isddha sdidha dsidha idsdha disdha siddha isddha sdidha dsidha idsdha disdha sddiha dsdiha sddiha dsdiha ddsiha ddsiha iddsha didsha iddsha didsha ddisha ddisha sidhda isdhda sdihda dsihda idshda dishda sihdda ishdda shidda hsidda ihsdda hisdda sdhida dshida shdida hsdida dhsida hdsida idhsda dihsda ihdsda hidsda dhisda hdisda sidhda isdhda sdihda dsihda idshda dishda sihdda ishdda shidda hsidda ihsdda hisdda sdhida dshida shdida hsdida dhsida hdsida idhsda dihsda ihdsda hidsda dhisda hdisda sddhia dsdhia sddhia dsdhia ddshia ddshia sdhdia dshdia shddia hsddia dhsdia hdsdia sdhdia dshdia shddia hsddia dhsdia hdsdia ddhsia ddhsia dhdsia hddsia dhdsia hddsia iddhsa didhsa iddhsa didhsa ddihsa ddihsa idhdsa dihdsa ihddsa hiddsa dhidsa hdidsa idhdsa dihdsa ihddsa hiddsa dhidsa hdidsa ddhisa ddhisa dhdisa hddisa dhdisa hddisa siddah isddah sdidah dsidah idsdah disdah siddah isddah sdidah dsidah idsdah disdah sddiah dsdiah sddiah dsdiah ddsiah ddsiah iddsah didsah iddsah didsah ddisah ddisah sidadh isdadh sdiadh dsiadh idsadh disadh siaddh isaddh saiddh asiddh iasddh aisddh sdaidh dsaidh sadidh asdidh dasidh adsidh idasdh diasdh iadsdh aidsdh daisdh adisdh sidadh isdadh sdiadh dsiadh idsadh disadh siaddh isaddh saiddh asiddh iasddh aisddh sdaidh dsaidh sadidh asdidh dasidh adsidh idasdh diasdh iadsdh aidsdh daisdh adisdh sddaih dsdaih sddaih dsdaih ddsaih ddsaih sdadih dsadih saddih asddih dasdih adsdih sdadih dsadih saddih asddih dasdih adsdih ddasih ddasih dadsih addsih dadsih addsih iddash didash iddash didash ddiash ddiash idadsh diadsh iaddsh aiddsh daidsh adidsh idadsh diadsh iaddsh aiddsh daidsh adidsh ddaish ddaish dadish addish dadish addish sidhad isdhad sdihad dsihad idshad dishad sihdad ishdad shidad hsidad ihsdad hisdad sdhiad dshiad shdiad hsdiad dhsiad hdsiad idhsad dihsad ihdsad hidsad dhisad hdisad sidahd isdahd sdiahd dsiahd idsahd disahd siadhd isadhd saidhd asidhd iasdhd aisdhd sdaihd dsaihd sadihd asdihd dasihd adsihd idashd diashd iadshd aidshd daishd adishd sihadd ishadd shiadd hsiadd ihsadd hisadd siahdd isahdd saihdd asihdd iashdd aishdd shaidd hsaidd sahidd ashidd hasidd ahsidd ihasdd hiasdd iahsdd aihsdd haisdd ahisdd sdhaid dshaid shdaid hsdaid dhsaid hdsaid sdahid dsahid sadhid asdhid dashid adshid shadid hsadid sahdid ashdid hasdid ahsdid dhasid hdasid dahsid adhsid hadsid ahdsid idhasd dihasd ihdasd hidasd dhiasd hdiasd idahsd diahsd iadhsd aidhsd daihsd adihsd ihadsd hiadsd iahdsd aihdsd haidsd ahidsd dhaisd hdaisd dahisd adhisd hadisd ahdisd sidhad isdhad sdihad dsihad idshad dishad sihdad ishdad shidad hsidad ihsdad hisdad sdhiad dshiad shdiad hsdiad dhsiad hdsiad idhsad dihsad ihdsad hidsad dhisad hdisad sidahd isdahd sdiahd dsiahd idsahd disahd siadhd isadhd saidhd asidhd iasdhd aisdhd sdaihd dsaihd sadihd asdihd dasihd adsihd idashd diashd iadshd aidshd daishd adishd sihadd ishadd shiadd hsiadd ihsadd hisadd siahdd isahdd saihdd asihdd iashdd aishdd shaidd hsaidd sahidd ashidd hasidd ahsidd ihasdd hiasdd iahsdd aihsdd haisdd ahisdd sdhaid dshaid shdaid hsdaid dhsaid hdsaid sdahid dsahid sadhid asdhid dashid adshid shadid hsadid sahdid ashdid hasdid ahsdid dhasid hdasid dahsid adhsid hadsid ahdsid idhasd dihasd ihdasd hidasd dhiasd hdiasd idahsd diahsd iadhsd aidhsd daihsd adihsd ihadsd hiadsd iahdsd aihdsd haidsd ahidsd dhaisd hdaisd dahisd adhisd hadisd ahdisd sddhai dsdhai sddhai dsdhai ddshai ddshai sdhdai dshdai shddai hsddai dhsdai hdsdai sdhdai dshdai shddai hsddai dhsdai hdsdai ddhsai ddhsai dhdsai hddsai dhdsai hddsai sddahi dsdahi sddahi dsdahi ddsahi ddsahi sdadhi dsadhi saddhi asddhi dasdhi adsdhi sdadhi dsadhi saddhi asddhi dasdhi adsdhi ddashi ddashi dadshi addshi dadshi addshi sdhadi dshadi shdadi hsdadi dhsadi hdsadi sdahdi dsahdi sadhdi asdhdi dashdi adshdi shaddi hsaddi sahddi ashddi hasddi ahsddi dhasdi hdasdi dahsdi adhsdi hadsdi ahdsdi sdhadi dshadi shdadi hsdadi dhsadi hdsadi sdahdi dsahdi sadhdi asdhdi dashdi adshdi shaddi hsaddi sahddi ashddi hasddi ahsddi dhasdi hdasdi dahsdi adhsdi hadsdi ahdsdi ddhasi ddhasi dhdasi hddasi dhdasi hddasi ddahsi ddahsi dadhsi addhsi dadhsi addhsi dhadsi hdadsi dahdsi adhdsi haddsi ahddsi dhadsi hdadsi dahdsi adhdsi haddsi ahddsi iddhas didhas iddhas didhas ddihas ddihas idhdas dihdas ihddas hiddas dhidas hdidas idhdas dihdas ihddas hiddas dhidas hdidas ddhias ddhias dhdias hddias dhdias hddias iddahs didahs iddahs didahs ddiahs ddiahs idadhs diadhs iaddhs aiddhs daidhs adidhs idadhs diadhs iaddhs aiddhs daidhs adidhs ddaihs ddaihs dadihs addihs dadihs addihs idhads dihads ihdads hidads dhiads hdiads idahds diahds iadhds aidhds daihds adihds ihadds hiadds iahdds aihdds haidds ahidds dhaids hdaids dahids adhids hadids ahdids idhads dihads ihdads hidads dhiads hdiads idahds diahds iadhds aidhds daihds adihds ihadds hiadds iahdds aihdds haidds ahidds dhaids hdaids dahids adhids hadids ahdids ddhais ddhais dhdais hddais dhdais hddais ddahis ddahis dadhis addhis dadhis addhis dhadis hdadis dahdis adhdis haddis ahddis dhadis hdadis dahdis adhdis haddis ahddis
Note: these 'words' (valid or invalid) are all the permutations of the word siddha. These words are obtained by scrambling the letters in siddha.