bierid iberid beirid ebirid iebrid eibrid bireid ibreid brieid rbieid irbeid ribeid beriid ebriid breiid rbeiid erbiid rebiid ierbid eirbid irebid riebid eribid reibid bieird ibeird beiird ebiird iebird eibird biierd ibierd biierd ibierd iiberd iiberd beiird ebiird bieird ibeird eibird iebird ieibrd eiibrd iiebrd iiebrd eiibrd ieibrd biried ibried briied rbiied irbied ribied biired ibired biired ibired iibred iibred briied rbiied biried ibried ribied irbied iribed riibed iirbed iirbed riibed iribed beriid ebriid breiid rbeiid erbiid rebiid beirid ebirid bierid iberid eibrid iebrid brieid rbieid bireid ibreid ribeid irbeid eribid reibid eirbid ierbid riebid irebid ieribd eiribd ireibd rieibd eriibd reiibd ieirbd eiirbd iierbd iierbd eiirbd ieirbd iriebd riiebd iirebd iirebd riiebd iriebd eriibd reiibd eiribd ieribd rieibd ireibd bierdi iberdi beirdi ebirdi iebrdi eibrdi biredi ibredi briedi rbiedi irbedi ribedi beridi ebridi breidi rbeidi erbidi rebidi ierbdi eirbdi irebdi riebdi eribdi reibdi biedri ibedri beidri ebidri iebdri eibdri bideri ibderi bdieri dbieri idberi diberi bediri ebdiri bdeiri dbeiri edbiri debiri iedbri eidbri idebri diebri edibri deibri birdei ibrdei bridei rbidei irbdei ribdei bidrei ibdrei bdirei dbirei idbrei dibrei brdiei rbdiei bdriei dbriei rdbiei drbiei irdbei ridbei idrbei dirbei rdibei dribei berdii ebrdii bredii rbedii erbdii rebdii bedrii ebdrii bderii dberii edbrii debrii brdeii rbdeii bdreii dbreii rdbeii drbeii erdbii redbii edrbii derbii rdebii drebii ierdbi eirdbi iredbi riedbi eridbi reidbi iedrbi eidrbi iderbi dierbi edirbi deirbi irdebi ridebi idrebi direbi rdiebi driebi erdibi redibi edribi deribi rdeibi dreibi bieidr ibeidr beiidr ebiidr iebidr eibidr biiedr ibiedr biiedr ibiedr iibedr iibedr beiidr ebiidr bieidr ibeidr eibidr iebidr ieibdr eiibdr iiebdr iiebdr eiibdr ieibdr biedir ibedir beidir ebidir iebdir eibdir bideir ibdeir bdieir dbieir idbeir dibeir bediir ebdiir bdeiir dbeiir edbiir debiir iedbir eidbir idebir diebir edibir deibir biider ibider biider ibider iibder iibder bidier ibdier bdiier dbiier idbier dibier bidier ibdier bdiier dbiier idbier dibier iidber iidber idiber diiber idiber diiber beidir ebidir biedir ibedir eibdir iebdir bediir ebdiir bdeiir dbeiir edbiir debiir bideir ibdeir bdieir dbieir idbeir dibeir eidbir iedbir edibir deibir idebir diebir ieidbr eiidbr iiedbr iiedbr eiidbr ieidbr iedibr eidibr ideibr dieibr ediibr deiibr iidebr iidebr idiebr diiebr idiebr diiebr eidibr iedibr ediibr deiibr ideibr dieibr biride ibride briide rbiide irbide ribide biirde ibirde biirde ibirde iibrde iibrde briide rbiide biride ibride ribide irbide iribde riibde iirbde iirbde riibde iribde birdie ibrdie bridie rbidie irbdie ribdie bidrie ibdrie bdirie dbirie idbrie dibrie brdiie rbdiie bdriie dbriie rdbiie drbiie irdbie ridbie idrbie dirbie rdibie dribie biidre ibidre biidre ibidre iibdre iibdre bidire ibdire bdiire dbiire idbire dibire bidire ibdire bdiire dbiire idbire dibire iidbre iidbre idibre diibre idibre diibre bridie rbidie birdie ibrdie ribdie irbdie brdiie rbdiie bdriie dbriie rdbiie drbiie bidrie ibdrie bdirie dbirie idbrie dibrie ridbie irdbie rdibie dribie idrbie dirbie iridbe riidbe iirdbe iirdbe riidbe iridbe irdibe ridibe idribe diribe rdiibe driibe iidrbe iidrbe idirbe diirbe idirbe diirbe ridibe irdibe rdiibe driibe idribe diribe beridi ebridi breidi rbeidi erbidi rebidi beirdi ebirdi bierdi iberdi eibrdi iebrdi briedi rbiedi biredi ibredi ribedi irbedi eribdi reibdi eirbdi ierbdi riebdi irebdi berdii ebrdii bredii rbedii erbdii rebdii bedrii ebdrii bderii dberii edbrii debrii brdeii rbdeii bdreii dbreii rdbeii drbeii erdbii redbii edrbii derbii rdebii drebii beidri ebidri biedri ibedri eibdri iebdri bediri ebdiri bdeiri dbeiri edbiri debiri bideri ibderi bdieri dbieri idberi diberi eidbri iedbri edibri deibri idebri diebri bridei rbidei birdei ibrdei ribdei irbdei brdiei rbdiei bdriei dbriei rdbiei drbiei bidrei ibdrei bdirei dbirei idbrei dibrei ridbei irdbei rdibei dribei idrbei dirbei eridbi reidbi eirdbi ierdbi riedbi iredbi erdibi redibi edribi deribi rdeibi dreibi eidrbi iedrbi edirbi deirbi iderbi dierbi ridebi irdebi rdiebi driebi idrebi direbi ieridb eiridb ireidb rieidb eriidb reiidb ieirdb eiirdb iierdb iierdb eiirdb ieirdb iriedb riiedb iiredb iiredb riiedb iriedb eriidb reiidb eiridb ieridb rieidb ireidb ierdib eirdib iredib riedib eridib reidib iedrib eidrib iderib dierib edirib deirib irdeib rideib idreib direib rdieib drieib erdiib rediib edriib deriib rdeiib dreiib ieidrb eiidrb iiedrb iiedrb eiidrb ieidrb iedirb eidirb ideirb dieirb ediirb deiirb iiderb iiderb idierb diierb idierb diierb eidirb iedirb ediirb deiirb ideirb dieirb irideb riideb iirdeb iirdeb riideb irideb irdieb ridieb idrieb dirieb rdiieb driieb iidreb iidreb idireb diireb idireb diireb ridieb irdieb rdiieb driieb idrieb dirieb eridib reidib eirdib ierdib riedib iredib erdiib rediib edriib deriib rdeiib dreiib eidrib iedrib edirib deirib iderib dierib rideib irdeib rdieib drieib idreib direib
Note: these 'words' (valid or invalid) are all the permutations of the word bierid. These words are obtained by scrambling the letters in bierid.