friers rfiers firers ifrers rifers irfers freirs rfeirs ferirs efrirs refirs erfirs fierrs iferrs feirrs efirrs iefrrs eifrrs riefrs irefrs reifrs erifrs ierfrs eirfrs frires rfires firres ifrres rifres irfres frries rfries frries rfries rrfies rrfies firres ifrres frires rfires irfres rifres rirfes irrfes rrifes rrifes irrfes rirfes freris rferis ferris efrris refris erfris frreis rfreis frreis rfreis rrfeis rrfeis ferris efrris freris rferis erfris refris rerfis errfis rrefis rrefis errfis rerfis fierrs iferrs feirrs efirrs iefrrs eifrrs firers ifrers friers rfiers irfers rifers ferirs efrirs freirs rfeirs erfirs refirs ierfrs eirfrs irefrs riefrs erifrs reifrs rierfs irerfs reirfs erirfs ierrfs eirrfs rirefs irrefs rriefs rriefs irrefs rirefs rerifs errifs rreifs rreifs errifs rerifs ierrfs eirrfs irerfs rierfs erirfs reirfs friesr rfiesr firesr ifresr rifesr irfesr freisr rfeisr ferisr efrisr refisr erfisr fiersr ifersr feirsr efirsr iefrsr eifrsr riefsr irefsr reifsr erifsr ierfsr eirfsr friser rfiser firser ifrser rifser irfser frsier rfsier fsrier sfrier rsfier srfier fisrer ifsrer fsirer sfirer isfrer sifrer risfer irsfer rsifer srifer isrfer sirfer fresir rfesir fersir efrsir refsir erfsir frseir rfseir fsreir sfreir rsfeir srfeir fesrir efsrir fserir sferir esfrir sefrir resfir ersfir rsefir srefir esrfir serfir fiesrr ifesrr feisrr efisrr iefsrr eifsrr fiserr ifserr fsierr sfierr isferr siferr fesirr efsirr fseirr sfeirr esfirr sefirr iesfrr eisfrr isefrr siefrr esifrr seifrr riesfr iresfr reisfr erisfr iersfr eirsfr risefr irsefr rsiefr sriefr isrefr sirefr resifr ersifr rseifr sreifr esrifr serifr iesrfr eisrfr iserfr sierfr esirfr seirfr frirse rfirse firrse ifrrse rifrse irfrse frrise rfrise frrise rfrise rrfise rrfise firrse ifrrse frirse rfirse irfrse rifrse rirfse irrfse rrifse rrifse irrfse rirfse frisre rfisre firsre ifrsre rifsre irfsre frsire rfsire fsrire sfrire rsfire srfire fisrre ifsrre fsirre sfirre isfrre sifrre risfre irsfre rsifre srifre isrfre sirfre frrsie rfrsie frrsie rfrsie rrfsie rrfsie frsrie rfsrie fsrrie sfrrie rsfrie srfrie frsrie rfsrie fsrrie sfrrie rsfrie srfrie rrsfie rrsfie rsrfie srrfie rsrfie srrfie firsre ifrsre frisre rfisre irfsre rifsre fisrre ifsrre fsirre sfirre isfrre sifrre frsire rfsire fsrire sfrire rsfire srfire irsfre risfre isrfre sirfre rsifre srifre rirsfe irrsfe rrisfe rrisfe irrsfe rirsfe risrfe irsrfe rsirfe srirfe isrrfe sirrfe rrsife rrsife rsrife srrife rsrife srrife irsrfe risrfe isrrfe sirrfe rsirfe srirfe frersi rfersi ferrsi efrrsi refrsi erfrsi frresi rfresi frresi rfresi rrfesi rrfesi ferrsi efrrsi frersi rfersi erfrsi refrsi rerfsi errfsi rrefsi rrefsi errfsi rerfsi fresri rfesri fersri efrsri refsri erfsri frseri rfseri fsreri sfreri rsferi srferi fesrri efsrri fserri sferri esfrri sefrri resfri ersfri rsefri srefri esrfri serfri frrsei rfrsei frrsei rfrsei rrfsei rrfsei frsrei rfsrei fsrrei sfrrei rsfrei srfrei frsrei rfsrei fsrrei sfrrei rsfrei srfrei rrsfei rrsfei rsrfei srrfei rsrfei srrfei fersri efrsri fresri rfesri erfsri refsri fesrri efsrri fserri sferri esfrri sefrri frseri rfseri fsreri sfreri rsferi srferi ersfri resfri esrfri serfri rsefri srefri rersfi errsfi rresfi rresfi errsfi rersfi resrfi ersrfi rserfi srerfi esrrfi serrfi rrsefi rrsefi rsrefi srrefi rsrefi srrefi ersrfi resrfi esrrfi serrfi rserfi srerfi fiersr ifersr feirsr efirsr iefrsr eifrsr firesr ifresr friesr rfiesr irfesr rifesr ferisr efrisr freisr rfeisr erfisr refisr ierfsr eirfsr irefsr riefsr erifsr reifsr fiesrr ifesrr feisrr efisrr iefsrr eifsrr fiserr ifserr fsierr sfierr isferr siferr fesirr efsirr fseirr sfeirr esfirr sefirr iesfrr eisfrr isefrr siefrr esifrr seifrr firser ifrser friser rfiser irfser rifser fisrer ifsrer fsirer sfirer isfrer sifrer frsier rfsier fsrier sfrier rsfier srfier irsfer risfer isrfer sirfer rsifer srifer fersir efrsir fresir rfesir erfsir refsir fesrir efsrir fserir sferir esfrir sefrir frseir rfseir fsreir sfreir rsfeir srfeir ersfir resfir esrfir serfir rsefir srefir iersfr eirsfr iresfr riesfr erisfr reisfr iesrfr eisrfr iserfr sierfr esirfr seirfr irsefr risefr isrefr sirefr rsiefr sriefr ersifr resifr esrifr serifr rseifr sreifr riersf irersf reirsf erirsf ierrsf eirrsf riresf irresf rriesf rriesf irresf riresf rerisf errisf rreisf rreisf errisf rerisf ierrsf eirrsf irersf riersf erirsf reirsf riesrf iresrf reisrf erisrf iersrf eirsrf riserf irserf rsierf srierf isrerf sirerf resirf ersirf rseirf sreirf esrirf serirf iesrrf eisrrf iserrf sierrf esirrf seirrf rirsef irrsef rrisef rrisef irrsef rirsef risref irsref rsiref sriref isrref sirref rrsief rrsief rsrief srrief rsrief srrief irsref risref isrref sirref rsiref sriref rersif errsif rresif rresif errsif rersif resrif ersrif rserif srerif esrrif serrif rrseif rrseif rsreif srreif rsreif srreif ersrif resrif esrrif serrif rserif srerif iersrf eirsrf iresrf riesrf erisrf reisrf iesrrf eisrrf iserrf sierrf esirrf seirrf irserf riserf isrerf sirerf rsierf srierf ersirf resirf esrirf serirf rseirf sreirf
Note: these 'words' (valid or invalid) are all the permutations of the word friers. These words are obtained by scrambling the letters in friers.