unpays nupays upnays punays npuays pnuays unapys nuapys uanpys aunpys naupys anupys upanys puanys uapnys aupnys paunys apunys npauys pnauys napuys anpuys panuys apnuys unpyas nupyas upnyas punyas npuyas pnuyas unypas nuypas uynpas yunpas nyupas ynupas upynas puynas uypnas yupnas pyunas ypunas npyuas pnyuas nypuas ynpuas pynuas ypnuas unayps nuayps uanyps aunyps nauyps anuyps unyaps nuyaps uynaps yunaps nyuaps ynuaps uaynps auynps uyanps yuanps ayunps yaunps nayups anyups nyaups ynaups aynups yanups upayns puayns uapyns aupyns pauyns apuyns upyans puyans uypans yupans pyuans ypuans uaypns auypns uyapns yuapns ayupns yaupns payuns apyuns pyauns ypauns aypuns yapuns npayus pnayus napyus anpyus panyus apnyus npyaus pnyaus nypaus ynpaus pynaus ypnaus naypus anypus nyapus ynapus aynpus yanpus paynus apynus pyanus ypanus aypnus yapnus unpasy nupasy upnasy punasy npuasy pnuasy unapsy nuapsy uanpsy aunpsy naupsy anupsy upansy puansy uapnsy aupnsy paunsy apunsy npausy pnausy napusy anpusy panusy apnusy unpsay nupsay upnsay punsay npusay pnusay unspay nuspay usnpay sunpay nsupay snupay upsnay pusnay uspnay supnay psunay spunay npsuay pnsuay nspuay snpuay psnuay spnuay unaspy nuaspy uanspy aunspy nauspy anuspy unsapy nusapy usnapy sunapy nsuapy snuapy uasnpy ausnpy usanpy suanpy asunpy saunpy nasupy ansupy nsaupy snaupy asnupy sanupy upasny puasny uapsny aupsny pausny apusny upsany pusany uspany supany psuany spuany uaspny auspny usapny suapny asupny saupny pasuny apsuny psauny spauny aspuny sapuny npasuy pnasuy napsuy anpsuy pansuy apnsuy npsauy pnsauy nspauy snpauy psnauy spnauy naspuy anspuy nsapuy snapuy asnpuy sanpuy pasnuy apsnuy psanuy spanuy aspnuy sapnuy unpysa nupysa upnysa punysa npuysa pnuysa unypsa nuypsa uynpsa yunpsa nyupsa ynupsa upynsa puynsa uypnsa yupnsa pyunsa ypunsa npyusa pnyusa nypusa ynpusa pynusa ypnusa unpsya nupsya upnsya punsya npusya pnusya unspya nuspya usnpya sunpya nsupya snupya upsnya pusnya uspnya supnya psunya spunya npsuya pnsuya nspuya snpuya psnuya spnuya unyspa nuyspa uynspa yunspa nyuspa ynuspa unsypa nusypa usnypa sunypa nsuypa snuypa uysnpa yusnpa usynpa suynpa ysunpa syunpa nysupa ynsupa nsyupa snyupa ysnupa synupa upysna puysna uypsna yupsna pyusna ypusna upsyna pusyna uspyna supyna psuyna spuyna uyspna yuspna usypna suypna ysupna syupna pysuna ypsuna psyuna spyuna yspuna sypuna npysua pnysua nypsua ynpsua pynsua ypnsua npsyua pnsyua nspyua snpyua psnyua spnyua nyspua ynspua nsypua snypua ysnpua synpua pysnua ypsnua psynua spynua yspnua sypnua unaysp nuaysp uanysp aunysp nauysp anuysp unyasp nuyasp uynasp yunasp nyuasp ynuasp uaynsp auynsp uyansp yuansp ayunsp yaunsp nayusp anyusp nyausp ynausp aynusp yanusp unasyp nuasyp uansyp aunsyp nausyp anusyp unsayp nusayp usnayp sunayp nsuayp snuayp uasnyp ausnyp usanyp suanyp asunyp saunyp nasuyp ansuyp nsauyp snauyp asnuyp sanuyp unysap nuysap uynsap yunsap nyusap ynusap unsyap nusyap usnyap sunyap nsuyap snuyap uysnap yusnap usynap suynap ysunap syunap nysuap ynsuap nsyuap snyuap ysnuap synuap uaysnp auysnp uyasnp yuasnp ayusnp yausnp uasynp ausynp usaynp suaynp asuynp sauynp uysanp yusanp usyanp suyanp ysuanp syuanp aysunp yasunp asyunp sayunp ysaunp syaunp naysup anysup nyasup ynasup aynsup yansup nasyup ansyup nsayup snayup asnyup sanyup nysaup ynsaup nsyaup snyaup ysnaup synaup aysnup yasnup asynup saynup ysanup syanup upaysn puaysn uapysn aupysn pauysn apuysn upyasn puyasn uypasn yupasn pyuasn ypuasn uaypsn auypsn uyapsn yuapsn ayupsn yaupsn payusn apyusn pyausn ypausn aypusn yapusn upasyn puasyn uapsyn aupsyn pausyn apusyn upsayn pusayn uspayn supayn psuayn spuayn uaspyn auspyn usapyn suapyn asupyn saupyn pasuyn apsuyn psauyn spauyn aspuyn sapuyn upysan puysan uypsan yupsan pyusan ypusan upsyan pusyan uspyan supyan psuyan spuyan uyspan yuspan usypan suypan ysupan syupan pysuan ypsuan psyuan spyuan yspuan sypuan uayspn auyspn uyaspn yuaspn ayuspn yauspn uasypn ausypn usaypn suaypn asuypn sauypn uysapn yusapn usyapn suyapn ysuapn syuapn aysupn yasupn asyupn sayupn ysaupn syaupn paysun apysun pyasun ypasun aypsun yapsun pasyun apsyun psayun spayun aspyun sapyun pysaun ypsaun psyaun spyaun yspaun sypaun ayspun yaspun asypun saypun ysapun syapun npaysu pnaysu napysu anpysu panysu apnysu npyasu pnyasu nypasu ynpasu pynasu ypnasu naypsu anypsu nyapsu ynapsu aynpsu yanpsu paynsu apynsu pyansu ypansu aypnsu yapnsu npasyu pnasyu napsyu anpsyu pansyu apnsyu npsayu pnsayu nspayu snpayu psnayu spnayu naspyu anspyu nsapyu snapyu asnpyu sanpyu pasnyu apsnyu psanyu spanyu aspnyu sapnyu npysau pnysau nypsau ynpsau pynsau ypnsau npsyau pnsyau nspyau snpyau psnyau spnyau nyspau ynspau nsypau snypau ysnpau synpau pysnau ypsnau psynau spynau yspnau sypnau nayspu anyspu nyaspu ynaspu aynspu yanspu nasypu ansypu nsaypu snaypu asnypu sanypu nysapu ynsapu nsyapu snyapu ysnapu synapu aysnpu yasnpu asynpu saynpu ysanpu syanpu paysnu apysnu pyasnu ypasnu aypsnu yapsnu pasynu apsynu psaynu spaynu aspynu sapynu pysanu ypsanu psyanu spyanu yspanu sypanu ayspnu yaspnu asypnu saypnu ysapnu syapnu
Note: these 'words' (valid or invalid) are all the permutations of the word unpays. These words are obtained by scrambling the letters in unpays.