growls rgowls gorwls ogrwls rogwls orgwls grwols rgwols gwrols wgrols rwgols wrgols gowrls ogwrls gworls wgorls owgrls wogrls rowgls orwgls rwogls wrogls owrgls worgls grolws rgolws gorlws ogrlws roglws orglws grlows rglows glrows lgrows rlgows lrgows golrws oglrws glorws lgorws olgrws logrws rolgws orlgws rlogws lrogws olrgws lorgws grwlos rgwlos gwrlos wgrlos rwglos wrglos grlwos rglwos glrwos lgrwos rlgwos lrgwos gwlros wglros glwros lgwros wlgros lwgros rwlgos wrlgos rlwgos lrwgos wlrgos lwrgos gowlrs ogwlrs gwolrs wgolrs owglrs woglrs golwrs oglwrs glowrs lgowrs olgwrs logwrs gwlors wglors glwors lgwors wlgors lwgors owlgrs wolgrs olwgrs lowgrs wlogrs lwogrs rowlgs orwlgs rwolgs wrolgs owrlgs worlgs rolwgs orlwgs rlowgs lrowgs olrwgs lorwgs rwlogs wrlogs rlwogs lrwogs wlrogs lwrogs owlrgs wolrgs olwrgs lowrgs wlorgs lworgs growsl rgowsl gorwsl ogrwsl rogwsl orgwsl grwosl rgwosl gwrosl wgrosl rwgosl wrgosl gowrsl ogwrsl gworsl wgorsl owgrsl wogrsl rowgsl orwgsl rwogsl wrogsl owrgsl worgsl groswl rgoswl gorswl ogrswl rogswl orgswl grsowl rgsowl gsrowl sgrowl rsgowl srgowl gosrwl ogsrwl gsorwl sgorwl osgrwl sogrwl rosgwl orsgwl rsogwl srogwl osrgwl sorgwl grwsol rgwsol gwrsol wgrsol rwgsol wrgsol grswol rgswol gsrwol sgrwol rsgwol srgwol gwsrol wgsrol gswrol sgwrol wsgrol swgrol rwsgol wrsgol rswgol srwgol wsrgol swrgol gowsrl ogwsrl gwosrl wgosrl owgsrl wogsrl goswrl ogswrl gsowrl sgowrl osgwrl sogwrl gwsorl wgsorl gsworl sgworl wsgorl swgorl owsgrl wosgrl oswgrl sowgrl wsogrl swogrl rowsgl orwsgl rwosgl wrosgl owrsgl worsgl roswgl orswgl rsowgl srowgl osrwgl sorwgl rwsogl wrsogl rswogl srwogl wsrogl swrogl owsrgl wosrgl oswrgl sowrgl wsorgl sworgl grolsw rgolsw gorlsw ogrlsw roglsw orglsw grlosw rglosw glrosw lgrosw rlgosw lrgosw golrsw oglrsw glorsw lgorsw olgrsw logrsw rolgsw orlgsw rlogsw lrogsw olrgsw lorgsw groslw rgoslw gorslw ogrslw rogslw orgslw grsolw rgsolw gsrolw sgrolw rsgolw srgolw gosrlw ogsrlw gsorlw sgorlw osgrlw sogrlw rosglw orsglw rsoglw sroglw osrglw sorglw grlsow rglsow glrsow lgrsow rlgsow lrgsow grslow rgslow gsrlow sgrlow rsglow srglow glsrow lgsrow gslrow sglrow lsgrow slgrow rlsgow lrsgow rslgow srlgow lsrgow slrgow golsrw oglsrw glosrw lgosrw olgsrw logsrw goslrw ogslrw gsolrw sgolrw osglrw soglrw glsorw lgsorw gslorw sglorw lsgorw slgorw olsgrw losgrw oslgrw solgrw lsogrw slogrw rolsgw orlsgw rlosgw lrosgw olrsgw lorsgw roslgw orslgw rsolgw srolgw osrlgw sorlgw rlsogw lrsogw rslogw srlogw lsrogw slrogw olsrgw losrgw oslrgw solrgw lsorgw slorgw grwlso rgwlso gwrlso wgrlso rwglso wrglso grlwso rglwso glrwso lgrwso rlgwso lrgwso gwlrso wglrso glwrso lgwrso wlgrso lwgrso rwlgso wrlgso rlwgso lrwgso wlrgso lwrgso grwslo rgwslo gwrslo wgrslo rwgslo wrgslo grswlo rgswlo gsrwlo sgrwlo rsgwlo srgwlo gwsrlo wgsrlo gswrlo sgwrlo wsgrlo swgrlo rwsglo wrsglo rswglo srwglo wsrglo swrglo grlswo rglswo glrswo lgrswo rlgswo lrgswo grslwo rgslwo gsrlwo sgrlwo rsglwo srglwo glsrwo lgsrwo gslrwo sglrwo lsgrwo slgrwo rlsgwo lrsgwo rslgwo srlgwo lsrgwo slrgwo gwlsro wglsro glwsro lgwsro wlgsro lwgsro gwslro wgslro gswlro sgwlro wsglro swglro glswro lgswro gslwro sglwro lsgwro slgwro wlsgro lwsgro wslgro swlgro lswgro slwgro rwlsgo wrlsgo rlwsgo lrwsgo wlrsgo lwrsgo rwslgo wrslgo rswlgo srwlgo wsrlgo swrlgo rlswgo lrswgo rslwgo srlwgo lsrwgo slrwgo wlsrgo lwsrgo wslrgo swlrgo lswrgo slwrgo gowlsr ogwlsr gwolsr wgolsr owglsr woglsr golwsr oglwsr glowsr lgowsr olgwsr logwsr gwlosr wglosr glwosr lgwosr wlgosr lwgosr owlgsr wolgsr olwgsr lowgsr wlogsr lwogsr gowslr ogwslr gwoslr wgoslr owgslr wogslr goswlr ogswlr gsowlr sgowlr osgwlr sogwlr gwsolr wgsolr gswolr sgwolr wsgolr swgolr owsglr wosglr oswglr sowglr wsoglr swoglr golswr oglswr gloswr lgoswr olgswr logswr goslwr ogslwr gsolwr sgolwr osglwr soglwr glsowr lgsowr gslowr sglowr lsgowr slgowr olsgwr losgwr oslgwr solgwr lsogwr slogwr gwlsor wglsor glwsor lgwsor wlgsor lwgsor gwslor wgslor gswlor sgwlor wsglor swglor glswor lgswor gslwor sglwor lsgwor slgwor wlsgor lwsgor wslgor swlgor lswgor slwgor owlsgr wolsgr olwsgr lowsgr wlosgr lwosgr owslgr woslgr oswlgr sowlgr wsolgr swolgr olswgr loswgr oslwgr solwgr lsowgr slowgr wlsogr lwsogr wslogr swlogr lswogr slwogr rowlsg orwlsg rwolsg wrolsg owrlsg worlsg rolwsg orlwsg rlowsg lrowsg olrwsg lorwsg rwlosg wrlosg rlwosg lrwosg wlrosg lwrosg owlrsg wolrsg olwrsg lowrsg wlorsg lworsg rowslg orwslg rwoslg wroslg owrslg worslg roswlg orswlg rsowlg srowlg osrwlg sorwlg rwsolg wrsolg rswolg srwolg wsrolg swrolg owsrlg wosrlg oswrlg sowrlg wsorlg sworlg rolswg orlswg rloswg lroswg olrswg lorswg roslwg orslwg rsolwg srolwg osrlwg sorlwg rlsowg lrsowg rslowg srlowg lsrowg slrowg olsrwg losrwg oslrwg solrwg lsorwg slorwg rwlsog wrlsog rlwsog lrwsog wlrsog lwrsog rwslog wrslog rswlog srwlog wsrlog swrlog rlswog lrswog rslwog srlwog lsrwog slrwog wlsrog lwsrog wslrog swlrog lswrog slwrog owlsrg wolsrg olwsrg lowsrg wlosrg lwosrg owslrg woslrg oswlrg sowlrg wsolrg swolrg olswrg loswrg oslwrg solwrg lsowrg slowrg wlsorg lwsorg wslorg swlorg lsworg slworg
Note: these 'words' (valid or invalid) are all the permutations of the word growls. These words are obtained by scrambling the letters in growls.