repack erpack rpeack preack eprack perack reapck erapck raepck arepck earpck aerpck rpaeck praeck rapeck arpeck pareck apreck eparck pearck eaprck aeprck paerck aperck repcak erpcak rpecak precak eprcak percak recpak ercpak rcepak crepak ecrpak cerpak rpceak prceak rcpeak crpeak pcreak cpreak epcrak pecrak ecprak ceprak pcerak cperak reacpk eracpk raecpk arecpk earcpk aercpk recapk ercapk rceapk creapk ecrapk cerapk racepk arcepk rcaepk craepk acrepk carepk eacrpk aecrpk ecarpk cearpk acerpk caerpk rpacek pracek rapcek arpcek parcek aprcek rpcaek prcaek rcpaek crpaek pcraek cpraek racpek arcpek rcapek crapek acrpek carpek pacrek apcrek pcarek cparek acprek caprek epacrk peacrk eapcrk aepcrk paecrk apecrk epcark pecark ecpark cepark pceark cpeark eacprk aecprk ecaprk ceaprk aceprk caeprk pacerk apcerk pcaerk cpaerk acperk caperk repakc erpakc rpeakc preakc eprakc perakc reapkc erapkc raepkc arepkc earpkc aerpkc rpaekc praekc rapekc arpekc parekc aprekc eparkc pearkc eaprkc aeprkc paerkc aperkc repkac erpkac rpekac prekac eprkac perkac rekpac erkpac rkepac krepac ekrpac kerpac rpkeac prkeac rkpeac krpeac pkreac kpreac epkrac pekrac ekprac keprac pkerac kperac reakpc erakpc raekpc arekpc earkpc aerkpc rekapc erkapc rkeapc kreapc ekrapc kerapc rakepc arkepc rkaepc kraepc akrepc karepc eakrpc aekrpc ekarpc kearpc akerpc kaerpc rpakec prakec rapkec arpkec parkec aprkec rpkaec prkaec rkpaec krpaec pkraec kpraec rakpec arkpec rkapec krapec akrpec karpec pakrec apkrec pkarec kparec akprec kaprec epakrc peakrc eapkrc aepkrc paekrc apekrc epkarc pekarc ekparc keparc pkearc kpearc eakprc aekprc ekaprc keaprc akeprc kaeprc pakerc apkerc pkaerc kpaerc akperc kaperc repcka erpcka rpecka precka eprcka percka recpka ercpka rcepka crepka ecrpka cerpka rpceka prceka rcpeka crpeka pcreka cpreka epcrka pecrka ecprka ceprka pcerka cperka repkca erpkca rpekca prekca eprkca perkca rekpca erkpca rkepca krepca ekrpca kerpca rpkeca prkeca rkpeca krpeca pkreca kpreca epkrca pekrca ekprca keprca pkerca kperca reckpa erckpa rcekpa crekpa ecrkpa cerkpa rekcpa erkcpa rkecpa krecpa ekrcpa kercpa rckepa crkepa rkcepa krcepa ckrepa kcrepa eckrpa cekrpa ekcrpa kecrpa ckerpa kcerpa rpckea prckea rcpkea crpkea pcrkea cprkea rpkcea prkcea rkpcea krpcea pkrcea kprcea rckpea crkpea rkcpea krcpea ckrpea kcrpea pckrea cpkrea pkcrea kpcrea ckprea kcprea epckra peckra ecpkra cepkra pcekra cpekra epkcra pekcra ekpcra kepcra pkecra kpecra eckpra cekpra ekcpra kecpra ckepra kcepra pckera cpkera pkcera kpcera ckpera kcpera reackp erackp raeckp areckp earckp aerckp recakp ercakp rceakp creakp ecrakp cerakp racekp arcekp rcaekp craekp acrekp carekp eacrkp aecrkp ecarkp cearkp acerkp caerkp reakcp erakcp raekcp arekcp earkcp aerkcp rekacp erkacp rkeacp kreacp ekracp keracp rakecp arkecp rkaecp kraecp akrecp karecp eakrcp aekrcp ekarcp kearcp akercp kaercp reckap erckap rcekap crekap ecrkap cerkap rekcap erkcap rkecap krecap ekrcap kercap rckeap crkeap rkceap krceap ckreap kcreap eckrap cekrap ekcrap kecrap ckerap kcerap rackep arckep rcakep crakep acrkep carkep rakcep arkcep rkacep kracep akrcep karcep rckaep crkaep rkcaep krcaep ckraep kcraep ackrep cakrep akcrep kacrep ckarep kcarep eackrp aeckrp ecakrp ceakrp acekrp caekrp eakcrp aekcrp ekacrp keacrp akecrp kaecrp eckarp cekarp ekcarp kecarp ckearp kcearp ackerp cakerp akcerp kacerp ckaerp kcaerp rpacke pracke rapcke arpcke parcke aprcke rpcake prcake rcpake crpake pcrake cprake racpke arcpke rcapke crapke acrpke carpke pacrke apcrke pcarke cparke acprke caprke rpakce prakce rapkce arpkce parkce aprkce rpkace prkace rkpace krpace pkrace kprace rakpce arkpce rkapce krapce akrpce karpce pakrce apkrce pkarce kparce akprce kaprce rpckae prckae rcpkae crpkae pcrkae cprkae rpkcae prkcae rkpcae krpcae pkrcae kprcae rckpae crkpae rkcpae krcpae ckrpae kcrpae pckrae cpkrae pkcrae kpcrae ckprae kcprae rackpe arckpe rcakpe crakpe acrkpe carkpe rakcpe arkcpe rkacpe kracpe akrcpe karcpe rckape crkape rkcape krcape ckrape kcrape ackrpe cakrpe akcrpe kacrpe ckarpe kcarpe packre apckre pcakre cpakre acpkre capkre pakcre apkcre pkacre kpacre akpcre kapcre pckare cpkare pkcare kpcare ckpare kcpare ackpre cakpre akcpre kacpre ckapre kcapre epackr peackr eapckr aepckr paeckr apeckr epcakr pecakr ecpakr cepakr pceakr cpeakr eacpkr aecpkr ecapkr ceapkr acepkr caepkr pacekr apcekr pcaekr cpaekr acpekr capekr epakcr peakcr eapkcr aepkcr paekcr apekcr epkacr pekacr ekpacr kepacr pkeacr kpeacr eakpcr aekpcr ekapcr keapcr akepcr kaepcr pakecr apkecr pkaecr kpaecr akpecr kapecr epckar peckar ecpkar cepkar pcekar cpekar epkcar pekcar ekpcar kepcar pkecar kpecar eckpar cekpar ekcpar kecpar ckepar kcepar pckear cpkear pkcear kpcear ckpear kcpear eackpr aeckpr ecakpr ceakpr acekpr caekpr eakcpr aekcpr ekacpr keacpr akecpr kaecpr eckapr cekapr ekcapr kecapr ckeapr kceapr ackepr cakepr akcepr kacepr ckaepr kcaepr packer apcker pcaker cpaker acpker capker pakcer apkcer pkacer kpacer akpcer kapcer pckaer cpkaer pkcaer kpcaer ckpaer kcpaer ackper cakper akcper kacper ckaper kcaper
Note: these 'words' (valid or invalid) are all the permutations of the word repack. These words are obtained by scrambling the letters in repack.