renins ernins rneins nreins enrins nerins reinns erinns rienns irenns eirnns iernns rniens nriens rinens irnens nirens inrens enirns neirns einrns ienrns nierns inerns rennis ernnis rnenis nrenis enrnis nernis rennis ernnis rnenis nrenis enrnis nernis rnneis nrneis rnneis nrneis nnreis nnreis ennris nenris ennris nenris nneris nneris reinns erinns rienns irenns eirnns iernns renins ernins rneins nreins enrins nerins rinens irnens rniens nriens inrens nirens einrns ienrns enirns neirns inerns nierns rnines nrines rinnes irnnes nirnes inrnes rnnies nrnies rnnies nrnies nnries nnries rinnes irnnes rnines nrines inrnes nirnes ninres innres nnires nnires innres ninres eninrs neinrs einnrs iennrs nienrs inenrs ennirs nenirs ennirs nenirs nneirs nneirs einnrs iennrs eninrs neinrs inenrs nienrs niners inners nniers nniers inners niners renisn ernisn rneisn nreisn enrisn nerisn reinsn erinsn riensn irensn eirnsn iernsn rniesn nriesn rinesn irnesn niresn inresn enirsn neirsn einrsn ienrsn niersn inersn rensin ernsin rnesin nresin enrsin nersin resnin ersnin rsenin srenin esrnin sernin rnsein nrsein rsnein srnein nsrein snrein ensrin nesrin esnrin senrin nserin snerin reisnn erisnn riesnn iresnn eirsnn iersnn resinn ersinn rseinn sreinn esrinn serinn risenn irsenn rsienn srienn isrenn sirenn eisrnn iesrnn esirnn seirnn isernn siernn rnisen nrisen rinsen irnsen nirsen inrsen rnsien nrsien rsnien srnien nsrien snrien risnen irsnen rsinen srinen isrnen sirnen nisren insren nsiren sniren isnren sinren enisrn neisrn einsrn iensrn niesrn inesrn ensirn nesirn esnirn senirn nseirn sneirn eisnrn iesnrn esinrn seinrn isenrn sienrn nisern insern nsiern sniern isnern sinern rennsi ernnsi rnensi nrensi enrnsi nernsi rennsi ernnsi rnensi nrensi enrnsi nernsi rnnesi nrnesi rnnesi nrnesi nnresi nnresi ennrsi nenrsi ennrsi nenrsi nnersi nnersi rensni ernsni rnesni nresni enrsni nersni resnni ersnni rsenni srenni esrnni sernni rnseni nrseni rsneni srneni nsreni snreni ensrni nesrni esnrni senrni nserni snerni rensni ernsni rnesni nresni enrsni nersni resnni ersnni rsenni srenni esrnni sernni rnseni nrseni rsneni srneni nsreni snreni ensrni nesrni esnrni senrni nserni snerni rnnsei nrnsei rnnsei nrnsei nnrsei nnrsei rnsnei nrsnei rsnnei srnnei nsrnei snrnei rnsnei nrsnei rsnnei srnnei nsrnei snrnei nnsrei nnsrei nsnrei snnrei nsnrei snnrei ennsri nensri ennsri nensri nnesri nnesri ensnri nesnri esnnri sennri nsenri snenri ensnri nesnri esnnri sennri nsenri snenri nnseri nnseri nsneri snneri nsneri snneri reinsn erinsn riensn irensn eirnsn iernsn renisn ernisn rneisn nreisn enrisn nerisn rinesn irnesn rniesn nriesn inresn niresn einrsn ienrsn enirsn neirsn inersn niersn reisnn erisnn riesnn iresnn eirsnn iersnn resinn ersinn rseinn sreinn esrinn serinn risenn irsenn rsienn srienn isrenn sirenn eisrnn iesrnn esirnn seirnn isernn siernn rensin ernsin rnesin nresin enrsin nersin resnin ersnin rsenin srenin esrnin sernin rnsein nrsein rsnein srnein nsrein snrein ensrin nesrin esnrin senrin nserin snerin rinsen irnsen rnisen nrisen inrsen nirsen risnen irsnen rsinen srinen isrnen sirnen rnsien nrsien rsnien srnien nsrien snrien insren nisren isnren sinren nsiren sniren einsrn iensrn enisrn neisrn inesrn niesrn eisnrn iesnrn esinrn seinrn isenrn sienrn ensirn nesirn esnirn senirn nseirn sneirn insern nisern isnern sinern nsiern sniern rninse nrinse rinnse irnnse nirnse inrnse rnnise nrnise rnnise nrnise nnrise nnrise rinnse irnnse rninse nrinse inrnse nirnse ninrse innrse nnirse nnirse innrse ninrse rnisne nrisne rinsne irnsne nirsne inrsne rnsine nrsine rsnine srnine nsrine snrine risnne irsnne rsinne srinne isrnne sirnne nisrne insrne nsirne snirne isnrne sinrne rnnsie nrnsie rnnsie nrnsie nnrsie nnrsie rnsnie nrsnie rsnnie srnnie nsrnie snrnie rnsnie nrsnie rsnnie srnnie nsrnie snrnie nnsrie nnsrie nsnrie snnrie nsnrie snnrie rinsne irnsne rnisne nrisne inrsne nirsne risnne irsnne rsinne srinne isrnne sirnne rnsine nrsine rsnine srnine nsrine snrine insrne nisrne isnrne sinrne nsirne snirne ninsre innsre nnisre nnisre innsre ninsre nisnre insnre nsinre sninre isnnre sinnre nnsire nnsire nsnire snnire nsnire snnire insnre nisnre isnnre sinnre nsinre sninre eninsr neinsr einnsr iennsr niensr inensr ennisr nenisr ennisr nenisr nneisr nneisr einnsr iennsr eninsr neinsr inensr niensr ninesr innesr nniesr nniesr innesr ninesr enisnr neisnr einsnr iensnr niesnr inesnr ensinr nesinr esninr seninr nseinr sneinr eisnnr iesnnr esinnr seinnr isennr siennr nisenr insenr nsienr snienr isnenr sinenr ennsir nensir ennsir nensir nnesir nnesir ensnir nesnir esnnir sennir nsenir snenir ensnir nesnir esnnir sennir nsenir snenir nnseir nnseir nsneir snneir nsneir snneir einsnr iensnr enisnr neisnr inesnr niesnr eisnnr iesnnr esinnr seinnr isennr siennr ensinr nesinr esninr seninr nseinr sneinr insenr nisenr isnenr sinenr nsienr snienr ninser innser nniser nniser innser ninser nisner insner nsiner sniner isnner sinner nnsier nnsier nsnier snnier nsnier snnier insner nisner isnner sinner nsiner sniner
Note: these 'words' (valid or invalid) are all the permutations of the word renins. These words are obtained by scrambling the letters in renins.