spacer psacer sapcer aspcer pascer apscer spcaer pscaer scpaer cspaer pcsaer cpsaer sacper ascper scaper csaper acsper casper pacser apcser pcaser cpaser acpser capser spaecr psaecr sapecr aspecr pasecr apsecr speacr pseacr sepacr espacr pesacr epsacr saepcr asepcr seapcr esapcr aespcr easpcr paescr apescr peascr epascr aepscr eapscr spcear pscear scpear cspear pcsear cpsear specar psecar sepcar espcar pescar epscar scepar csepar secpar escpar cespar ecspar pcesar cpesar pecsar epcsar cepsar ecpsar sacepr ascepr scaepr csaepr acsepr casepr saecpr asecpr seacpr esacpr aescpr eascpr sceapr cseapr secapr escapr cesapr ecsapr acespr caespr aecspr eacspr ceaspr ecaspr pacesr apcesr pcaesr cpaesr acpesr capesr paecsr apecsr peacsr epacsr aepcsr eapcsr pceasr cpeasr pecasr epcasr cepasr ecpasr acepsr caepsr aecpsr eacpsr ceapsr ecapsr spacre psacre sapcre aspcre pascre apscre spcare pscare scpare cspare pcsare cpsare sacpre ascpre scapre csapre acspre caspre pacsre apcsre pcasre cpasre acpsre capsre sparce psarce saprce asprce pasrce apsrce sprace psrace srpace rspace prsace rpsace sarpce asrpce srapce rsapce arspce raspce parsce aprsce prasce rpasce arpsce rapsce spcrae pscrae scprae csprae pcsrae cpsrae sprcae psrcae srpcae rspcae prscae rpscae scrpae csrpae srcpae rscpae crspae rcspae pcrsae cprsae prcsae rpcsae crpsae rcpsae sacrpe ascrpe scarpe csarpe acsrpe casrpe sarcpe asrcpe sracpe rsacpe arscpe rascpe scrape csrape srcape rscape crsape rcsape acrspe carspe arcspe racspe craspe rcaspe pacrse apcrse pcarse cparse acprse caprse parcse aprcse pracse rpacse arpcse rapcse pcrase cprase prcase rpcase crpase rcpase acrpse carpse arcpse racpse crapse rcapse spaerc psaerc saperc asperc paserc apserc spearc psearc separc esparc pesarc epsarc saeprc aseprc seaprc esaprc aesprc easprc paesrc apesrc peasrc epasrc aepsrc eapsrc sparec psarec saprec asprec pasrec apsrec spraec psraec srpaec rspaec prsaec rpsaec sarpec asrpec srapec rsapec arspec raspec parsec aprsec prasec rpasec arpsec rapsec sperac pserac seprac esprac pesrac epsrac spreac psreac srpeac rspeac prseac rpseac serpac esrpac srepac rsepac erspac respac persac eprsac presac rpesac erpsac repsac saerpc aserpc searpc esarpc aesrpc easrpc sarepc asrepc sraepc rsaepc arsepc rasepc serapc esrapc sreapc rseapc ersapc resapc aerspc earspc arespc raespc eraspc reaspc paersc apersc pearsc eparsc aeprsc eaprsc paresc apresc praesc rpaesc arpesc rapesc perasc eprasc preasc rpeasc erpasc repasc aerpsc earpsc arepsc raepsc erapsc reapsc spcera pscera scpera cspera pcsera cpsera specra psecra sepcra espcra pescra epscra scepra csepra secpra escpra cespra ecspra pcesra cpesra pecsra epcsra cepsra ecpsra spcrea pscrea scprea csprea pcsrea cpsrea sprcea psrcea srpcea rspcea prscea rpscea scrpea csrpea srcpea rscpea crspea rcspea pcrsea cprsea prcsea rpcsea crpsea rcpsea sperca pserca seprca esprca pesrca epsrca spreca psreca srpeca rspeca prseca rpseca serpca esrpca srepca rsepca erspca respca persca eprsca presca rpesca erpsca repsca scerpa cserpa secrpa escrpa cesrpa ecsrpa screpa csrepa srcepa rscepa crsepa rcsepa sercpa esrcpa srecpa rsecpa erscpa rescpa cerspa ecrspa crespa rcespa ercspa recspa pcersa cpersa pecrsa epcrsa ceprsa ecprsa pcresa cpresa prcesa rpcesa crpesa rcpesa percsa eprcsa precsa rpecsa erpcsa repcsa cerpsa ecrpsa crepsa rcepsa ercpsa recpsa sacerp ascerp scaerp csaerp acserp caserp saecrp asecrp seacrp esacrp aescrp eascrp scearp csearp secarp escarp cesarp ecsarp acesrp caesrp aecsrp eacsrp ceasrp ecasrp sacrep ascrep scarep csarep acsrep casrep sarcep asrcep sracep rsacep arscep rascep scraep csraep srcaep rscaep crsaep rcsaep acrsep carsep arcsep racsep crasep rcasep saercp asercp searcp esarcp aesrcp easrcp sarecp asrecp sraecp rsaecp arsecp rasecp seracp esracp sreacp rseacp ersacp resacp aerscp earscp arescp raescp erascp reascp scerap cserap secrap escrap cesrap ecsrap screap csreap srceap rsceap crseap rcseap sercap esrcap srecap rsecap erscap rescap cersap ecrsap cresap rcesap ercsap recsap acersp caersp aecrsp eacrsp cearsp ecarsp acresp caresp arcesp racesp craesp rcaesp aercsp earcsp arecsp raecsp eracsp reacsp cerasp ecrasp creasp rceasp ercasp recasp pacers apcers pcaers cpaers acpers capers paecrs apecrs peacrs epacrs aepcrs eapcrs pcears cpears pecars epcars cepars ecpars aceprs caeprs aecprs eacprs ceaprs ecaprs pacres apcres pcares cpares acpres capres parces aprces praces rpaces arpces rapces pcraes cpraes prcaes rpcaes crpaes rcpaes acrpes carpes arcpes racpes crapes rcapes paercs apercs pearcs eparcs aeprcs eaprcs parecs aprecs praecs rpaecs arpecs rapecs peracs epracs preacs rpeacs erpacs repacs aerpcs earpcs arepcs raepcs erapcs reapcs pceras cperas pecras epcras cepras ecpras pcreas cpreas prceas rpceas crpeas rcpeas percas eprcas precas rpecas erpcas repcas cerpas ecrpas crepas rcepas ercpas recpas acerps caerps aecrps eacrps cearps ecarps acreps careps arceps raceps craeps rcaeps aercps earcps arecps raecps eracps reacps ceraps ecraps creaps rceaps ercaps recaps
Note: these 'words' (valid or invalid) are all the permutations of the word spacer. These words are obtained by scrambling the letters in spacer.