grinds rginds girnds igrnds rignds irgnds grnids rgnids gnrids ngrids rngids nrgids ginrds ignrds gnirds ngirds ingrds nigrds ringds irngds rnigds nrigds inrgds nirgds gridns rgidns girdns igrdns rigdns irgdns grdins rgdins gdrins dgrins rdgins drgins gidrns igdrns gdirns dgirns idgrns digrns ridgns irdgns rdigns drigns idrgns dirgns grndis rgndis gnrdis ngrdis rngdis nrgdis grdnis rgdnis gdrnis dgrnis rdgnis drgnis gndris ngdris gdnris dgnris ndgris dngris rndgis nrdgis rdngis drngis ndrgis dnrgis gindrs igndrs gnidrs ngidrs ingdrs nigdrs gidnrs igdnrs gdinrs dginrs idgnrs dignrs gndirs ngdirs gdnirs dgnirs ndgirs dngirs indgrs nidgrs idngrs dingrs ndigrs dnigrs rindgs irndgs rnidgs nridgs inrdgs nirdgs ridngs irdngs rdings drings idrngs dirngs rndigs nrdigs rdnigs drnigs ndrigs dnrigs indrgs nidrgs idnrgs dinrgs ndirgs dnirgs grinsd rginsd girnsd igrnsd rignsd irgnsd grnisd rgnisd gnrisd ngrisd rngisd nrgisd ginrsd ignrsd gnirsd ngirsd ingrsd nigrsd ringsd irngsd rnigsd nrigsd inrgsd nirgsd grisnd rgisnd girsnd igrsnd rigsnd irgsnd grsind rgsind gsrind sgrind rsgind srgind gisrnd igsrnd gsirnd sgirnd isgrnd sigrnd risgnd irsgnd rsignd srignd isrgnd sirgnd grnsid rgnsid gnrsid ngrsid rngsid nrgsid grsnid rgsnid gsrnid sgrnid rsgnid srgnid gnsrid ngsrid gsnrid sgnrid nsgrid sngrid rnsgid nrsgid rsngid srngid nsrgid snrgid ginsrd ignsrd gnisrd ngisrd ingsrd nigsrd gisnrd igsnrd gsinrd sginrd isgnrd signrd gnsird ngsird gsnird sgnird nsgird sngird insgrd nisgrd isngrd singrd nsigrd snigrd rinsgd irnsgd rnisgd nrisgd inrsgd nirsgd risngd irsngd rsingd sringd isrngd sirngd rnsigd nrsigd rsnigd srnigd nsrigd snrigd insrgd nisrgd isnrgd sinrgd nsirgd snirgd gridsn rgidsn girdsn igrdsn rigdsn irgdsn grdisn rgdisn gdrisn dgrisn rdgisn drgisn gidrsn igdrsn gdirsn dgirsn idgrsn digrsn ridgsn irdgsn rdigsn drigsn idrgsn dirgsn grisdn rgisdn girsdn igrsdn rigsdn irgsdn grsidn rgsidn gsridn sgridn rsgidn srgidn gisrdn igsrdn gsirdn sgirdn isgrdn sigrdn risgdn irsgdn rsigdn srigdn isrgdn sirgdn grdsin rgdsin gdrsin dgrsin rdgsin drgsin grsdin rgsdin gsrdin sgrdin rsgdin srgdin gdsrin dgsrin gsdrin sgdrin dsgrin sdgrin rdsgin drsgin rsdgin srdgin dsrgin sdrgin gidsrn igdsrn gdisrn dgisrn idgsrn digsrn gisdrn igsdrn gsidrn sgidrn isgdrn sigdrn gdsirn dgsirn gsdirn sgdirn dsgirn sdgirn idsgrn disgrn isdgrn sidgrn dsigrn sdigrn ridsgn irdsgn rdisgn drisgn idrsgn dirsgn risdgn irsdgn rsidgn sridgn isrdgn sirdgn rdsign drsign rsdign srdign dsrign sdrign idsrgn disrgn isdrgn sidrgn dsirgn sdirgn grndsi rgndsi gnrdsi ngrdsi rngdsi nrgdsi grdnsi rgdnsi gdrnsi dgrnsi rdgnsi drgnsi gndrsi ngdrsi gdnrsi dgnrsi ndgrsi dngrsi rndgsi nrdgsi rdngsi drngsi ndrgsi dnrgsi grnsdi rgnsdi gnrsdi ngrsdi rngsdi nrgsdi grsndi rgsndi gsrndi sgrndi rsgndi srgndi gnsrdi ngsrdi gsnrdi sgnrdi nsgrdi sngrdi rnsgdi nrsgdi rsngdi srngdi nsrgdi snrgdi grdsni rgdsni gdrsni dgrsni rdgsni drgsni grsdni rgsdni gsrdni sgrdni rsgdni srgdni gdsrni dgsrni gsdrni sgdrni dsgrni sdgrni rdsgni drsgni rsdgni srdgni dsrgni sdrgni gndsri ngdsri gdnsri dgnsri ndgsri dngsri gnsdri ngsdri gsndri sgndri nsgdri sngdri gdsnri dgsnri gsdnri sgdnri dsgnri sdgnri ndsgri dnsgri nsdgri sndgri dsngri sdngri rndsgi nrdsgi rdnsgi drnsgi ndrsgi dnrsgi rnsdgi nrsdgi rsndgi srndgi nsrdgi snrdgi rdsngi drsngi rsdngi srdngi dsrngi sdrngi ndsrgi dnsrgi nsdrgi sndrgi dsnrgi sdnrgi gindsr igndsr gnidsr ngidsr ingdsr nigdsr gidnsr igdnsr gdinsr dginsr idgnsr dignsr gndisr ngdisr gdnisr dgnisr ndgisr dngisr indgsr nidgsr idngsr dingsr ndigsr dnigsr ginsdr ignsdr gnisdr ngisdr ingsdr nigsdr gisndr igsndr gsindr sgindr isgndr signdr gnsidr ngsidr gsnidr sgnidr nsgidr sngidr insgdr nisgdr isngdr singdr nsigdr snigdr gidsnr igdsnr gdisnr dgisnr idgsnr digsnr gisdnr igsdnr gsidnr sgidnr isgdnr sigdnr gdsinr dgsinr gsdinr sgdinr dsginr sdginr idsgnr disgnr isdgnr sidgnr dsignr sdignr gndsir ngdsir gdnsir dgnsir ndgsir dngsir gnsdir ngsdir gsndir sgndir nsgdir sngdir gdsnir dgsnir gsdnir sgdnir dsgnir sdgnir ndsgir dnsgir nsdgir sndgir dsngir sdngir indsgr nidsgr idnsgr dinsgr ndisgr dnisgr insdgr nisdgr isndgr sindgr nsidgr snidgr idsngr disngr isdngr sidngr dsingr sdingr ndsigr dnsigr nsdigr sndigr dsnigr sdnigr rindsg irndsg rnidsg nridsg inrdsg nirdsg ridnsg irdnsg rdinsg drinsg idrnsg dirnsg rndisg nrdisg rdnisg drnisg ndrisg dnrisg indrsg nidrsg idnrsg dinrsg ndirsg dnirsg rinsdg irnsdg rnisdg nrisdg inrsdg nirsdg risndg irsndg rsindg srindg isrndg sirndg rnsidg nrsidg rsnidg srnidg nsridg snridg insrdg nisrdg isnrdg sinrdg nsirdg snirdg ridsng irdsng rdisng drisng idrsng dirsng risdng irsdng rsidng sridng isrdng sirdng rdsing drsing rsding srding dsring sdring idsrng disrng isdrng sidrng dsirng sdirng rndsig nrdsig rdnsig drnsig ndrsig dnrsig rnsdig nrsdig rsndig srndig nsrdig snrdig rdsnig drsnig rsdnig srdnig dsrnig sdrnig ndsrig dnsrig nsdrig sndrig dsnrig sdnrig indsrg nidsrg idnsrg dinsrg ndisrg dnisrg insdrg nisdrg isndrg sindrg nsidrg snidrg idsnrg disnrg isdnrg sidnrg dsinrg sdinrg ndsirg dnsirg nsdirg sndirg dsnirg sdnirg
Note: these 'words' (valid or invalid) are all the permutations of the word grinds. These words are obtained by scrambling the letters in grinds.