rapack arpack rpaack praack aprack parack raapck arapck raapck arapck aarpck aarpck rpaack praack rapack arpack parack aprack aparck paarck aaprck aaprck paarck aparck rapcak arpcak rpacak pracak aprcak parcak racpak arcpak rcapak crapak acrpak carpak rpcaak prcaak rcpaak crpaak pcraak cpraak apcrak pacrak acprak caprak pcarak cparak raacpk aracpk raacpk aracpk aarcpk aarcpk racapk arcapk rcaapk craapk acrapk carapk racapk arcapk rcaapk craapk acrapk carapk aacrpk aacrpk acarpk caarpk acarpk caarpk rpacak pracak rapcak arpcak parcak aprcak rpcaak prcaak rcpaak crpaak pcraak cpraak racpak arcpak rcapak crapak acrpak carpak pacrak apcrak pcarak cparak acprak caprak apacrk paacrk aapcrk aapcrk paacrk apacrk apcark pacark acpark capark pcaark cpaark aacprk aacprk acaprk caaprk acaprk caaprk pacark apcark pcaark cpaark acpark capark rapakc arpakc rpaakc praakc aprakc parakc raapkc arapkc raapkc arapkc aarpkc aarpkc rpaakc praakc rapakc arpakc parakc aprakc aparkc paarkc aaprkc aaprkc paarkc aparkc rapkac arpkac rpakac prakac aprkac parkac rakpac arkpac rkapac krapac akrpac karpac rpkaac prkaac rkpaac krpaac pkraac kpraac apkrac pakrac akprac kaprac pkarac kparac raakpc arakpc raakpc arakpc aarkpc aarkpc rakapc arkapc rkaapc kraapc akrapc karapc rakapc arkapc rkaapc kraapc akrapc karapc aakrpc aakrpc akarpc kaarpc akarpc kaarpc rpakac prakac rapkac arpkac parkac aprkac rpkaac prkaac rkpaac krpaac pkraac kpraac rakpac arkpac rkapac krapac akrpac karpac pakrac apkrac pkarac kparac akprac kaprac apakrc paakrc aapkrc aapkrc paakrc apakrc apkarc pakarc akparc kaparc pkaarc kpaarc aakprc aakprc akaprc kaaprc akaprc kaaprc pakarc apkarc pkaarc kpaarc akparc kaparc rapcka arpcka rpacka pracka aprcka parcka racpka arcpka rcapka crapka acrpka carpka rpcaka prcaka rcpaka crpaka pcraka cpraka apcrka pacrka acprka caprka pcarka cparka rapkca arpkca rpakca prakca aprkca parkca rakpca arkpca rkapca krapca akrpca karpca rpkaca prkaca rkpaca krpaca pkraca kpraca apkrca pakrca akprca kaprca pkarca kparca rackpa arckpa rcakpa crakpa acrkpa carkpa rakcpa arkcpa rkacpa kracpa akrcpa karcpa rckapa crkapa rkcapa krcapa ckrapa kcrapa ackrpa cakrpa akcrpa kacrpa ckarpa kcarpa rpckaa prckaa rcpkaa crpkaa pcrkaa cprkaa rpkcaa prkcaa rkpcaa krpcaa pkrcaa kprcaa rckpaa crkpaa rkcpaa krcpaa ckrpaa kcrpaa pckraa cpkraa pkcraa kpcraa ckpraa kcpraa apckra packra acpkra capkra pcakra cpakra apkcra pakcra akpcra kapcra pkacra kpacra ackpra cakpra akcpra kacpra ckapra kcapra pckara cpkara pkcara kpcara ckpara kcpara raackp arackp raackp arackp aarckp aarckp racakp arcakp rcaakp craakp acrakp carakp racakp arcakp rcaakp craakp acrakp carakp aacrkp aacrkp acarkp caarkp acarkp caarkp raakcp arakcp raakcp arakcp aarkcp aarkcp rakacp arkacp rkaacp kraacp akracp karacp rakacp arkacp rkaacp kraacp akracp karacp aakrcp aakrcp akarcp kaarcp akarcp kaarcp rackap arckap rcakap crakap acrkap carkap rakcap arkcap rkacap kracap akrcap karcap rckaap crkaap rkcaap krcaap ckraap kcraap ackrap cakrap akcrap kacrap ckarap kcarap rackap arckap rcakap crakap acrkap carkap rakcap arkcap rkacap kracap akrcap karcap rckaap crkaap rkcaap krcaap ckraap kcraap ackrap cakrap akcrap kacrap ckarap kcarap aackrp aackrp acakrp caakrp acakrp caakrp aakcrp aakcrp akacrp kaacrp akacrp kaacrp ackarp cakarp akcarp kacarp ckaarp kcaarp ackarp cakarp akcarp kacarp ckaarp kcaarp rpacka pracka rapcka arpcka parcka aprcka rpcaka prcaka rcpaka crpaka pcraka cpraka racpka arcpka rcapka crapka acrpka carpka pacrka apcrka pcarka cparka acprka caprka rpakca prakca rapkca arpkca parkca aprkca rpkaca prkaca rkpaca krpaca pkraca kpraca rakpca arkpca rkapca krapca akrpca karpca pakrca apkrca pkarca kparca akprca kaprca rpckaa prckaa rcpkaa crpkaa pcrkaa cprkaa rpkcaa prkcaa rkpcaa krpcaa pkrcaa kprcaa rckpaa crkpaa rkcpaa krcpaa ckrpaa kcrpaa pckraa cpkraa pkcraa kpcraa ckpraa kcpraa rackpa arckpa rcakpa crakpa acrkpa carkpa rakcpa arkcpa rkacpa kracpa akrcpa karcpa rckapa crkapa rkcapa krcapa ckrapa kcrapa ackrpa cakrpa akcrpa kacrpa ckarpa kcarpa packra apckra pcakra cpakra acpkra capkra pakcra apkcra pkacra kpacra akpcra kapcra pckara cpkara pkcara kpcara ckpara kcpara ackpra cakpra akcpra kacpra ckapra kcapra apackr paackr aapckr aapckr paackr apackr apcakr pacakr acpakr capakr pcaakr cpaakr aacpkr aacpkr acapkr caapkr acapkr caapkr pacakr apcakr pcaakr cpaakr acpakr capakr apakcr paakcr aapkcr aapkcr paakcr apakcr apkacr pakacr akpacr kapacr pkaacr kpaacr aakpcr aakpcr akapcr kaapcr akapcr kaapcr pakacr apkacr pkaacr kpaacr akpacr kapacr apckar packar acpkar capkar pcakar cpakar apkcar pakcar akpcar kapcar pkacar kpacar ackpar cakpar akcpar kacpar ckapar kcapar pckaar cpkaar pkcaar kpcaar ckpaar kcpaar aackpr aackpr acakpr caakpr acakpr caakpr aakcpr aakcpr akacpr kaacpr akacpr kaacpr ackapr cakapr akcapr kacapr ckaapr kcaapr ackapr cakapr akcapr kacapr ckaapr kcaapr packar apckar pcakar cpakar acpkar capkar pakcar apkcar pkacar kpacar akpcar kapcar pckaar cpkaar pkcaar kpcaar ckpaar kcpaar ackpar cakpar akcpar kacpar ckapar kcapar
Note: these 'words' (valid or invalid) are all the permutations of the word rapack. These words are obtained by scrambling the letters in rapack.