backer abcker bcaker cbaker acbker cabker bakcer abkcer bkacer kbacer akbcer kabcer bckaer cbkaer bkcaer kbcaer ckbaer kcbaer ackber cakber akcber kacber ckaber kcaber bacekr abcekr bcaekr cbaekr acbekr cabekr baeckr abeckr beackr ebackr aebckr eabckr bceakr cbeakr becakr ebcakr cebakr ecbakr acebkr caebkr aecbkr eacbkr ceabkr ecabkr bakecr abkecr bkaecr kbaecr akbecr kabecr baekcr abekcr beakcr ebakcr aebkcr eabkcr bkeacr kbeacr bekacr ebkacr kebacr ekbacr akebcr kaebcr aekbcr eakbcr keabcr ekabcr bckear cbkear bkcear kbcear ckbear kcbear bcekar cbekar beckar ebckar cebkar ecbkar bkecar kbecar bekcar ebkcar kebcar ekbcar ckebar kcebar cekbar eckbar kecbar ekcbar ackebr cakebr akcebr kacebr ckaebr kcaebr acekbr caekbr aeckbr eackbr ceakbr ecakbr akecbr kaecbr aekcbr eakcbr keacbr ekacbr ckeabr kceabr cekabr eckabr kecabr ekcabr backre abckre bcakre cbakre acbkre cabkre bakcre abkcre bkacre kbacre akbcre kabcre bckare cbkare bkcare kbcare ckbare kcbare ackbre cakbre akcbre kacbre ckabre kcabre bacrke abcrke bcarke cbarke acbrke cabrke barcke abrcke bracke rbacke arbcke rabcke bcrake cbrake brcake rbcake crbake rcbake acrbke carbke arcbke racbke crabke rcabke bakrce abkrce bkarce kbarce akbrce kabrce barkce abrkce brakce rbakce arbkce rabkce bkrace kbrace brkace rbkace krbace rkbace akrbce karbce arkbce rakbce krabce rkabce bckrae cbkrae bkcrae kbcrae ckbrae kcbrae bcrkae cbrkae brckae rbckae crbkae rcbkae bkrcae kbrcae brkcae rbkcae krbcae rkbcae ckrbae kcrbae crkbae rckbae krcbae rkcbae ackrbe cakrbe akcrbe kacrbe ckarbe kcarbe acrkbe carkbe arckbe rackbe crakbe rcakbe akrcbe karcbe arkcbe rakcbe kracbe rkacbe ckrabe kcrabe crkabe rckabe krcabe rkcabe bacerk abcerk bcaerk cbaerk acberk caberk baecrk abecrk beacrk ebacrk aebcrk eabcrk bceark cbeark becark ebcark cebark ecbark acebrk caebrk aecbrk eacbrk ceabrk ecabrk bacrek abcrek bcarek cbarek acbrek cabrek barcek abrcek bracek rbacek arbcek rabcek bcraek cbraek brcaek rbcaek crbaek rcbaek acrbek carbek arcbek racbek crabek rcabek baerck aberck bearck ebarck aebrck eabrck bareck abreck braeck rbaeck arbeck rabeck berack ebrack breack rbeack erback reback aerbck earbck arebck raebck erabck reabck bcerak cberak becrak ebcrak cebrak ecbrak bcreak cbreak brceak rbceak crbeak rcbeak bercak ebrcak brecak rbecak erbcak rebcak cerbak ecrbak crebak rcebak ercbak recbak acerbk caerbk aecrbk eacrbk cearbk ecarbk acrebk carebk arcebk racebk craebk rcaebk aercbk earcbk arecbk raecbk eracbk reacbk cerabk ecrabk creabk rceabk ercabk recabk bakerc abkerc bkaerc kbaerc akberc kaberc baekrc abekrc beakrc ebakrc aebkrc eabkrc bkearc kbearc bekarc ebkarc kebarc ekbarc akebrc kaebrc aekbrc eakbrc keabrc ekabrc bakrec abkrec bkarec kbarec akbrec kabrec barkec abrkec brakec rbakec arbkec rabkec bkraec kbraec brkaec rbkaec krbaec rkbaec akrbec karbec arkbec rakbec krabec rkabec baerkc aberkc bearkc ebarkc aebrkc eabrkc barekc abrekc braekc rbaekc arbekc rabekc berakc ebrakc breakc rbeakc erbakc rebakc aerbkc earbkc arebkc raebkc erabkc reabkc bkerac kberac bekrac ebkrac kebrac ekbrac bkreac kbreac brkeac rbkeac krbeac rkbeac berkac ebrkac brekac rbekac erbkac rebkac kerbac ekrbac krebac rkebac erkbac rekbac akerbc kaerbc aekrbc eakrbc kearbc ekarbc akrebc karebc arkebc rakebc kraebc rkaebc aerkbc earkbc arekbc raekbc erakbc reakbc kerabc ekrabc kreabc rkeabc erkabc rekabc bckera cbkera bkcera kbcera ckbera kcbera bcekra cbekra beckra ebckra cebkra ecbkra bkecra kbecra bekcra ebkcra kebcra ekbcra ckebra kcebra cekbra eckbra kecbra ekcbra bckrea cbkrea bkcrea kbcrea ckbrea kcbrea bcrkea cbrkea brckea rbckea crbkea rcbkea bkrcea kbrcea brkcea rbkcea krbcea rkbcea ckrbea kcrbea crkbea rckbea krcbea rkcbea bcerka cberka becrka ebcrka cebrka ecbrka bcreka cbreka brceka rbceka crbeka rcbeka bercka ebrcka brecka rbecka erbcka rebcka cerbka ecrbka crebka rcebka ercbka recbka bkerca kberca bekrca ebkrca kebrca ekbrca bkreca kbreca brkeca rbkeca krbeca rkbeca berkca ebrkca brekca rbekca erbkca rebkca kerbca ekrbca krebca rkebca erkbca rekbca ckerba kcerba cekrba eckrba kecrba ekcrba ckreba kcreba crkeba rckeba krceba rkceba cerkba ecrkba crekba rcekba erckba reckba kercba ekrcba krecba rkecba erkcba rekcba ackerb cakerb akcerb kacerb ckaerb kcaerb acekrb caekrb aeckrb eackrb ceakrb ecakrb akecrb kaecrb aekcrb eakcrb keacrb ekacrb ckearb kcearb cekarb eckarb kecarb ekcarb ackreb cakreb akcreb kacreb ckareb kcareb acrkeb carkeb arckeb rackeb crakeb rcakeb akrceb karceb arkceb rakceb kraceb rkaceb ckraeb kcraeb crkaeb rckaeb krcaeb rkcaeb acerkb caerkb aecrkb eacrkb cearkb ecarkb acrekb carekb arcekb racekb craekb rcaekb aerckb earckb areckb raeckb erackb reackb cerakb ecrakb creakb rceakb ercakb recakb akercb kaercb aekrcb eakrcb kearcb ekarcb akrecb karecb arkecb rakecb kraecb rkaecb aerkcb earkcb arekcb raekcb erakcb reakcb keracb ekracb kreacb rkeacb erkacb rekacb ckerab kcerab cekrab eckrab kecrab ekcrab ckreab kcreab crkeab rckeab krceab rkceab cerkab ecrkab crekab rcekab erckab reckab kercab ekrcab krecab rkecab erkcab rekcab
Note: these 'words' (valid or invalid) are all the permutations of the word backer. These words are obtained by scrambling the letters in backer.