gravel rgavel garvel agrvel ragvel argvel grvael rgvael gvrael vgrael rvgael vrgael gavrel agvrel gvarel vgarel avgrel vagrel ravgel arvgel rvagel vragel avrgel vargel graevl rgaevl garevl agrevl ragevl argevl greavl rgeavl geravl egravl regavl ergavl gaervl agervl gearvl egarvl aegrvl eagrvl raegvl aregvl reagvl eragvl aergvl eargvl grveal rgveal gvreal vgreal rvgeal vrgeal greval rgeval gerval egrval regval ergval gveral vgeral gevral egvral vegral evgral rvegal vregal revgal ervgal vergal evrgal gaverl agverl gvaerl vgaerl avgerl vagerl gaevrl agevrl geavrl egavrl aegvrl eagvrl gvearl vgearl gevarl egvarl vegarl evgarl avegrl vaegrl aevgrl eavgrl veagrl evagrl ravegl arvegl rvaegl vraegl avregl varegl raevgl arevgl reavgl eravgl aervgl earvgl rveagl vreagl revagl ervagl veragl evragl avergl vaergl aevrgl eavrgl veargl evargl gravle rgavle garvle agrvle ragvle argvle grvale rgvale gvrale vgrale rvgale vrgale gavrle agvrle gvarle vgarle avgrle vagrle ravgle arvgle rvagle vragle avrgle vargle gralve rgalve garlve agrlve raglve arglve grlave rglave glrave lgrave rlgave lrgave galrve aglrve glarve lgarve algrve lagrve ralgve arlgve rlagve lragve alrgve largve grvlae rgvlae gvrlae vgrlae rvglae vrglae grlvae rglvae glrvae lgrvae rlgvae lrgvae gvlrae vglrae glvrae lgvrae vlgrae lvgrae rvlgae vrlgae rlvgae lrvgae vlrgae lvrgae gavlre agvlre gvalre vgalre avglre vaglre galvre aglvre glavre lgavre algvre lagvre gvlare vglare glvare lgvare vlgare lvgare avlgre valgre alvgre lavgre vlagre lvagre ravlge arvlge rvalge vralge avrlge varlge ralvge arlvge rlavge lravge alrvge larvge rvlage vrlage rlvage lrvage vlrage lvrage avlrge valrge alvrge lavrge vlarge lvarge graelv rgaelv garelv agrelv ragelv argelv grealv rgealv geralv egralv regalv ergalv gaerlv agerlv gearlv egarlv aegrlv eagrlv raeglv areglv reaglv eraglv aerglv earglv gralev rgalev garlev agrlev raglev arglev grlaev rglaev glraev lgraev rlgaev lrgaev galrev aglrev glarev lgarev algrev lagrev ralgev arlgev rlagev lragev alrgev largev grelav rgelav gerlav egrlav reglav erglav grleav rgleav glreav lgreav rlgeav lrgeav gelrav eglrav glerav lgerav elgrav legrav relgav erlgav rlegav lregav elrgav lergav gaelrv agelrv gealrv egalrv aeglrv eaglrv galerv aglerv glaerv lgaerv algerv lagerv gelarv eglarv glearv lgearv elgarv legarv aelgrv ealgrv alegrv laegrv elagrv leagrv raelgv arelgv realgv eralgv aerlgv earlgv ralegv arlegv rlaegv lraegv alregv laregv relagv erlagv rleagv lreagv elragv leragv aelrgv ealrgv alergv laergv elargv leargv grvela rgvela gvrela vgrela rvgela vrgela grevla rgevla gervla egrvla regvla ergvla gverla vgerla gevrla egvrla vegrla evgrla rvegla vregla revgla ervgla vergla evrgla grvlea rgvlea gvrlea vgrlea rvglea vrglea grlvea rglvea glrvea lgrvea rlgvea lrgvea gvlrea vglrea glvrea lgvrea vlgrea lvgrea rvlgea vrlgea rlvgea lrvgea vlrgea lvrgea grelva rgelva gerlva egrlva reglva erglva grleva rgleva glreva lgreva rlgeva lrgeva gelrva eglrva glerva lgerva elgrva legrva relgva erlgva rlegva lregva elrgva lergva gvelra vgelra gevlra egvlra veglra evglra gvlera vglera glvera lgvera vlgera lvgera gelvra eglvra glevra lgevra elgvra legvra velgra evlgra vlegra lvegra elvgra levgra rvelga vrelga revlga ervlga verlga evrlga rvlega vrlega rlvega lrvega vlrega lvrega relvga erlvga rlevga lrevga elrvga lervga velrga evlrga vlerga lverga elvrga levrga gavelr agvelr gvaelr vgaelr avgelr vagelr gaevlr agevlr geavlr egavlr aegvlr eagvlr gvealr vgealr gevalr egvalr vegalr evgalr aveglr vaeglr aevglr eavglr veaglr evaglr gavler agvler gvaler vgaler avgler vagler galver aglver glaver lgaver algver lagver gvlaer vglaer glvaer lgvaer vlgaer lvgaer avlger valger alvger lavger vlager lvager gaelvr agelvr gealvr egalvr aeglvr eaglvr galevr aglevr glaevr lgaevr algevr lagevr gelavr eglavr gleavr lgeavr elgavr legavr aelgvr ealgvr alegvr laegvr elagvr leagvr gvelar vgelar gevlar egvlar veglar evglar gvlear vglear glvear lgvear vlgear lvgear gelvar eglvar glevar lgevar elgvar legvar velgar evlgar vlegar lvegar elvgar levgar avelgr vaelgr aevlgr eavlgr vealgr evalgr avlegr valegr alvegr lavegr vlaegr lvaegr aelvgr ealvgr alevgr laevgr elavgr leavgr velagr evlagr vleagr lveagr elvagr levagr ravelg arvelg rvaelg vraelg avrelg varelg raevlg arevlg reavlg eravlg aervlg earvlg rvealg vrealg revalg ervalg veralg evralg averlg vaerlg aevrlg eavrlg vearlg evarlg ravleg arvleg rvaleg vraleg avrleg varleg ralveg arlveg rlaveg lraveg alrveg larveg rvlaeg vrlaeg rlvaeg lrvaeg vlraeg lvraeg avlreg valreg alvreg lavreg vlareg lvareg raelvg arelvg realvg eralvg aerlvg earlvg ralevg arlevg rlaevg lraevg alrevg larevg relavg erlavg rleavg lreavg elravg leravg aelrvg ealrvg alervg laervg elarvg learvg rvelag vrelag revlag ervlag verlag evrlag rvleag vrleag rlveag lrveag vlreag lvreag relvag erlvag rlevag lrevag elrvag lervag velrag evlrag vlerag lverag elvrag levrag avelrg vaelrg aevlrg eavlrg vealrg evalrg avlerg valerg alverg laverg vlaerg lvaerg aelvrg ealvrg alevrg laevrg elavrg leavrg velarg evlarg vlearg lvearg elvarg levarg
Note: these 'words' (valid or invalid) are all the permutations of the word gravel. These words are obtained by scrambling the letters in gravel.