hearts eharts haerts aherts eahrts aehrts herats ehrats hreats rheats erhats rehats harets ahrets hraets rhaets arhets rahets earhts aerhts erahts reahts arehts raehts heatrs ehatrs haetrs ahetrs eahtrs aehtrs hetars ehtars htears thears ethars tehars haters ahters htaers thaers athers tahers eathrs aethrs etahrs teahrs atehrs taehrs hertas ehrtas hretas rhetas erhtas rehtas hetras ehtras hteras theras ethras tehras hrteas rhteas htreas threas rtheas trheas erthas rethas etrhas terhas rtehas trehas hartes ahrtes hrates rhates arhtes rahtes hatres ahtres htares thares athres tahres hrtaes rhtaes htraes thraes rthaes trhaes arthes rathes atrhes tarhes rtahes trahes earths aerths eraths reaths areths raeths eatrhs aetrhs etarhs tearhs aterhs taerhs ertahs retahs etrahs terahs rteahs treahs artehs ratehs atrehs tarehs rtaehs traehs hearst eharst haerst aherst eahrst aehrst herast ehrast hreast rheast erhast rehast harest ahrest hraest rhaest arhest rahest earhst aerhst erahst reahst arehst raehst heasrt ehasrt haesrt ahesrt eahsrt aehsrt hesart ehsart hseart sheart eshart sehart hasert ahsert hsaert shaert ashert sahert eashrt aeshrt esahrt seahrt asehrt saehrt hersat ehrsat hresat rhesat erhsat rehsat hesrat ehsrat hserat sherat eshrat sehrat hrseat rhseat hsreat shreat rsheat srheat ershat reshat esrhat serhat rsehat srehat harset ahrset hraset rhaset arhset rahset hasret ahsret hsaret sharet ashret sahret hrsaet rhsaet hsraet shraet rshaet srhaet arshet rashet asrhet sarhet rsahet srahet earsht aersht erasht reasht aresht raesht easrht aesrht esarht searht aserht saerht ersaht resaht esraht seraht rseaht sreaht arseht raseht asreht sareht rsaeht sraeht heatsr ehatsr haetsr ahetsr eahtsr aehtsr hetasr ehtasr hteasr theasr ethasr tehasr hatesr ahtesr htaesr thaesr athesr tahesr eathsr aethsr etahsr teahsr atehsr taehsr heastr ehastr haestr ahestr eahstr aehstr hesatr ehsatr hseatr sheatr eshatr sehatr hasetr ahsetr hsaetr shaetr ashetr sahetr eashtr aeshtr esahtr seahtr asehtr saehtr hetsar ehtsar htesar thesar ethsar tehsar hestar ehstar hsetar shetar eshtar sehtar htsear thsear hstear shtear tshear sthear etshar teshar esthar sethar tsehar stehar hatser ahtser htaser thaser athser tahser haster ahster hsater shater ashter sahter htsaer thsaer hstaer shtaer tshaer sthaer atsher tasher asther sather tsaher staher eatshr aetshr etashr teashr ateshr taeshr easthr aesthr esathr seathr asethr saethr etsahr tesahr estahr setahr tseahr steahr atsehr tasehr astehr satehr tsaehr staehr hertsa ehrtsa hretsa rhetsa erhtsa rehtsa hetrsa ehtrsa htersa thersa ethrsa tehrsa hrtesa rhtesa htresa thresa rthesa trhesa erthsa rethsa etrhsa terhsa rtehsa trehsa hersta ehrsta hresta rhesta erhsta rehsta hesrta ehsrta hserta sherta eshrta sehrta hrseta rhseta hsreta shreta rsheta srheta ershta reshta esrhta serhta rsehta srehta hetsra ehtsra htesra thesra ethsra tehsra hestra ehstra hsetra shetra eshtra sehtra htsera thsera hstera shtera tshera sthera etshra teshra esthra sethra tsehra stehra hrtsea rhtsea htrsea thrsea rthsea trhsea hrstea rhstea hsrtea shrtea rshtea srhtea htsrea thsrea hstrea shtrea tshrea sthrea rtshea trshea rsthea srthea tsrhea strhea ertsha retsha etrsha tersha rtesha tresha erstha restha esrtha sertha rsetha sretha etsrha tesrha estrha setrha tserha sterha rtseha trseha rsteha srteha tsreha streha hartse ahrtse hratse rhatse arhtse rahtse hatrse ahtrse htarse tharse athrse tahrse hrtase rhtase htrase thrase rthase trhase arthse rathse atrhse tarhse rtahse trahse harste ahrste hraste rhaste arhste rahste hasrte ahsrte hsarte sharte ashrte sahrte hrsate rhsate hsrate shrate rshate srhate arshte rashte asrhte sarhte rsahte srahte hatsre ahtsre htasre thasre athsre tahsre hastre ahstre hsatre shatre ashtre sahtre htsare thsare hstare shtare tshare sthare atshre tashre asthre sathre tsahre stahre hrtsae rhtsae htrsae thrsae rthsae trhsae hrstae rhstae hsrtae shrtae rshtae srhtae htsrae thsrae hstrae shtrae tshrae sthrae rtshae trshae rsthae srthae tsrhae strhae artshe ratshe atrshe tarshe rtashe trashe arsthe rasthe asrthe sarthe rsathe srathe atsrhe tasrhe astrhe satrhe tsarhe starhe rtsahe trsahe rstahe srtahe tsrahe strahe eartsh aertsh eratsh reatsh aretsh raetsh eatrsh aetrsh etarsh tearsh atersh taersh ertash retash etrash terash rteash treash artesh ratesh atresh taresh rtaesh traesh earsth aersth erasth reasth aresth raesth easrth aesrth esarth searth aserth saerth ersath resath esrath serath rseath sreath arseth raseth asreth sareth rsaeth sraeth eatsrh aetsrh etasrh teasrh atesrh taesrh eastrh aestrh esatrh seatrh asetrh saetrh etsarh tesarh estarh setarh tsearh stearh atserh taserh asterh saterh tsaerh staerh ertsah retsah etrsah tersah rtesah tresah erstah restah esrtah sertah rsetah sretah etsrah tesrah estrah setrah tserah sterah rtseah trseah rsteah srteah tsreah streah artseh ratseh atrseh tarseh rtaseh traseh arsteh rasteh asrteh sarteh rsateh srateh atsreh tasreh astreh satreh tsareh stareh rtsaeh trsaeh rstaeh srtaeh tsraeh straeh
Note: these 'words' (valid or invalid) are all the permutations of the word hearts. These words are obtained by scrambling the letters in hearts.