masing amsing msaing smaing asming saming maisng amisng miasng imasng aimsng iamsng msiang smiang misang imsang simang ismang asimng saimng aismng iasmng siamng isamng masnig amsnig msanig smanig asmnig samnig mansig amnsig mnasig nmasig anmsig namsig msnaig smnaig mnsaig nmsaig snmaig nsmaig asnmig sanmig ansmig nasmig snamig nsamig mainsg aminsg miansg imansg aimnsg iamnsg manisg amnisg mnaisg nmaisg anmisg namisg minasg imnasg mniasg nmiasg inmasg nimasg ainmsg ianmsg animsg naimsg inamsg niamsg msinag sminag misnag imsnag simnag ismnag msniag smniag mnsiag nmsiag snmiag nsmiag minsag imnsag mnisag nmisag inmsag nimsag sinmag isnmag snimag nsimag insmag nismag asinmg sainmg aisnmg iasnmg sianmg isanmg asnimg sanimg ansimg nasimg snaimg nsaimg ainsmg iansmg anismg naismg inasmg niasmg sinamg isnamg sniamg nsiamg insamg nisamg masign amsign msaign smaign asmign samign maisgn amisgn miasgn imasgn aimsgn iamsgn msiagn smiagn misagn imsagn simagn ismagn asimgn saimgn aismgn iasmgn siamgn isamgn masgin amsgin msagin smagin asmgin samgin magsin amgsin mgasin gmasin agmsin gamsin msgain smgain mgsain gmsain sgmain gsmain asgmin sagmin agsmin gasmin sgamin gsamin maigsn amigsn miagsn imagsn aimgsn iamgsn magisn amgisn mgaisn gmaisn agmisn gamisn migasn imgasn mgiasn gmiasn igmasn gimasn aigmsn iagmsn agimsn gaimsn igamsn giamsn msigan smigan misgan imsgan simgan ismgan msgian smgian mgsian gmsian sgmian gsmian migsan imgsan mgisan gmisan igmsan gimsan sigman isgman sgiman gsiman igsman gisman asigmn saigmn aisgmn iasgmn siagmn isagmn asgimn sagimn agsimn gasimn sgaimn gsaimn aigsmn iagsmn agismn gaismn igasmn giasmn sigamn isgamn sgiamn gsiamn igsamn gisamn masngi amsngi msangi smangi asmngi samngi mansgi amnsgi mnasgi nmasgi anmsgi namsgi msnagi smnagi mnsagi nmsagi snmagi nsmagi asnmgi sanmgi ansmgi nasmgi snamgi nsamgi masgni amsgni msagni smagni asmgni samgni magsni amgsni mgasni gmasni agmsni gamsni msgani smgani mgsani gmsani sgmani gsmani asgmni sagmni agsmni gasmni sgamni gsamni mangsi amngsi mnagsi nmagsi anmgsi namgsi magnsi amgnsi mgansi gmansi agmnsi gamnsi mngasi nmgasi mgnasi gmnasi ngmasi gnmasi angmsi nagmsi agnmsi ganmsi ngamsi gnamsi msngai smngai mnsgai nmsgai snmgai nsmgai msgnai smgnai mgsnai gmsnai sgmnai gsmnai mngsai nmgsai mgnsai gmnsai ngmsai gnmsai sngmai nsgmai sgnmai gsnmai ngsmai gnsmai asngmi sangmi ansgmi nasgmi snagmi nsagmi asgnmi sagnmi agsnmi gasnmi sganmi gsanmi angsmi nagsmi agnsmi gansmi ngasmi gnasmi sngami nsgami sgnami gsnami ngsami gnsami maings amings miangs imangs aimngs iamngs manigs amnigs mnaigs nmaigs anmigs namigs minags imnags mniags nmiags inmags nimags ainmgs ianmgs animgs naimgs inamgs niamgs maigns amigns miagns imagns aimgns iamgns magins amgins mgains gmains agmins gamins migans imgans mgians gmians igmans gimans aigmns iagmns agimns gaimns igamns giamns mangis amngis mnagis nmagis anmgis namgis magnis amgnis mganis gmanis agmnis gamnis mngais nmgais mgnais gmnais ngmais gnmais angmis nagmis agnmis ganmis ngamis gnamis mingas imngas mnigas nmigas inmgas nimgas mignas imgnas mginas gminas igmnas gimnas mngias nmgias mgnias gmnias ngmias gnmias ingmas nigmas ignmas ginmas ngimas gnimas aingms iangms anigms naigms inagms niagms aignms iagnms aginms gainms iganms gianms angims nagims agnims ganims ngaims gnaims ingams nigams ignams ginams ngiams gniams msinga sminga misnga imsnga simnga ismnga msniga smniga mnsiga nmsiga snmiga nsmiga minsga imnsga mnisga nmisga inmsga nimsga sinmga isnmga snimga nsimga insmga nismga msigna smigna misgna imsgna simgna ismgna msgina smgina mgsina gmsina sgmina gsmina migsna imgsna mgisna gmisna igmsna gimsna sigmna isgmna sgimna gsimna igsmna gismna msngia smngia mnsgia nmsgia snmgia nsmgia msgnia smgnia mgsnia gmsnia sgmnia gsmnia mngsia nmgsia mgnsia gmnsia ngmsia gnmsia sngmia nsgmia sgnmia gsnmia ngsmia gnsmia mingsa imngsa mnigsa nmigsa inmgsa nimgsa mignsa imgnsa mginsa gminsa igmnsa gimnsa mngisa nmgisa mgnisa gmnisa ngmisa gnmisa ingmsa nigmsa ignmsa ginmsa ngimsa gnimsa singma isngma snigma nsigma insgma nisgma signma isgnma sginma gsinma igsnma gisnma sngima nsgima sgnima gsnima ngsima gnsima ingsma nigsma ignsma ginsma ngisma gnisma asingm saingm aisngm iasngm siangm isangm asnigm sanigm ansigm nasigm snaigm nsaigm ainsgm iansgm anisgm naisgm inasgm niasgm sinagm isnagm sniagm nsiagm insagm nisagm asignm saignm aisgnm iasgnm siagnm isagnm asginm saginm agsinm gasinm sgainm gsainm aigsnm iagsnm agisnm gaisnm igasnm giasnm siganm isganm sgianm gsianm igsanm gisanm asngim sangim ansgim nasgim snagim nsagim asgnim sagnim agsnim gasnim sganim gsanim angsim nagsim agnsim gansim ngasim gnasim sngaim nsgaim sgnaim gsnaim ngsaim gnsaim aingsm iangsm anigsm naigsm inagsm niagsm aignsm iagnsm aginsm gainsm igansm giansm angism nagism agnism ganism ngaism gnaism ingasm nigasm ignasm ginasm ngiasm gniasm singam isngam snigam nsigam insgam nisgam signam isgnam sginam gsinam igsnam gisnam sngiam nsgiam sgniam gsniam ngsiam gnsiam ingsam nigsam ignsam ginsam ngisam gnisam
Note: these 'words' (valid or invalid) are all the permutations of the word masing. These words are obtained by scrambling the letters in masing.