caltek acltek clatek lcatek alctek lactek catlek actlek ctalek tcalek atclek taclek cltaek lctaek ctlaek tclaek ltcaek tlcaek altcek latcek atlcek talcek ltacek tlacek caletk acletk claetk lcaetk alcetk lacetk caeltk aceltk cealtk ecaltk aecltk eacltk cleatk lceatk celatk eclatk lecatk elcatk alectk laectk aelctk ealctk leactk elactk catelk actelk ctaelk tcaelk atcelk tacelk caetlk acetlk ceatlk ecatlk aectlk eactlk ctealk tcealk cetalk ectalk tecalk etcalk ateclk taeclk aetclk eatclk teaclk etaclk clteak lcteak ctleak tcleak ltceak tlceak cletak lcetak celtak ecltak lectak elctak ctelak tcelak cetlak ectlak teclak etclak ltecak tlecak letcak eltcak telcak etlcak alteck lateck atleck taleck ltaeck tlaeck aletck laetck aeltck ealtck leatck elatck atelck taelck aetlck eatlck tealck etalck lteack tleack letack eltack telack etlack caltke acltke clatke lcatke alctke lactke catlke actlke ctalke tcalke atclke taclke cltake lctake ctlake tclake ltcake tlcake altcke latcke atlcke talcke ltacke tlacke calkte aclkte clakte lcakte alckte lackte caklte acklte ckalte kcalte akclte kaclte clkate lckate cklate kclate lkcate klcate alkcte lakcte aklcte kalcte lkacte klacte catkle actkle ctakle tcakle atckle tackle caktle acktle ckatle kcatle akctle kactle ctkale tckale cktale kctale tkcale ktcale atkcle takcle aktcle katcle tkacle ktacle cltkae lctkae ctlkae tclkae ltckae tlckae clktae lcktae ckltae kcltae lkctae klctae ctklae tcklae cktlae kctlae tkclae ktclae ltkcae tlkcae lktcae kltcae tklcae ktlcae altkce latkce atlkce talkce ltakce tlakce alktce laktce akltce kaltce lkatce klatce atklce taklce aktlce katlce tkalce ktalce ltkace tlkace lktace kltace tklace ktlace calekt aclekt claekt lcaekt alcekt lacekt caelkt acelkt cealkt ecalkt aeclkt eaclkt cleakt lceakt celakt eclakt lecakt elcakt aleckt laeckt aelckt ealckt leackt elackt calket aclket claket lcaket alcket lacket caklet acklet ckalet kcalet akclet kaclet clkaet lckaet cklaet kclaet lkcaet klcaet alkcet lakcet aklcet kalcet lkacet klacet caeklt aceklt ceaklt ecaklt aecklt eacklt cakelt ackelt ckaelt kcaelt akcelt kacelt cekalt eckalt ckealt kcealt ekcalt kecalt aekclt eakclt akeclt kaeclt ekaclt keaclt clekat lcekat celkat eclkat leckat elckat clkeat lckeat ckleat kcleat lkceat klceat ceklat ecklat ckelat kcelat ekclat keclat lekcat elkcat lkecat klecat eklcat kelcat alekct laekct aelkct ealkct leakct elakct alkect lakect aklect kalect lkaect klaect aeklct eaklct akelct kaelct ekalct kealct lekact elkact lkeact kleact eklact kelact catekl actekl ctaekl tcaekl atcekl tacekl caetkl acetkl ceatkl ecatkl aectkl eactkl cteakl tceakl cetakl ectakl tecakl etcakl ateckl taeckl aetckl eatckl teackl etackl catkel actkel ctakel tcakel atckel tackel caktel acktel ckatel kcatel akctel kactel ctkael tckael cktael kctael tkcael ktcael atkcel takcel aktcel katcel tkacel ktacel caektl acektl ceaktl ecaktl aecktl eacktl caketl acketl ckaetl kcaetl akcetl kacetl cekatl eckatl ckeatl kceatl ekcatl kecatl aekctl eakctl akectl kaectl ekactl keactl ctekal tcekal cetkal ectkal teckal etckal ctkeal tckeal ckteal kcteal tkceal ktceal cektal ecktal cketal kcetal ekctal kectal tekcal etkcal tkecal ktecal ektcal ketcal atekcl taekcl aetkcl eatkcl teakcl etakcl atkecl takecl aktecl katecl tkaecl ktaecl aektcl eaktcl aketcl kaetcl ekatcl keatcl tekacl etkacl tkeacl kteacl ektacl ketacl clteka lcteka ctleka tcleka ltceka tlceka cletka lcetka celtka ecltka lectka elctka ctelka tcelka cetlka ectlka teclka etclka ltecka tlecka letcka eltcka telcka etlcka cltkea lctkea ctlkea tclkea ltckea tlckea clktea lcktea ckltea kcltea lkctea klctea ctklea tcklea cktlea kctlea tkclea ktclea ltkcea tlkcea lktcea kltcea tklcea ktlcea clekta lcekta celkta eclkta leckta elckta clketa lcketa ckleta kcleta lkceta klceta ceklta ecklta ckelta kcelta ekclta keclta lekcta elkcta lkecta klecta eklcta kelcta ctekla tcekla cetkla ectkla teckla etckla ctkela tckela cktela kctela tkcela ktcela cektla ecktla cketla kcetla ekctla kectla tekcla etkcla tkecla ktecla ektcla ketcla ltekca tlekca letkca eltkca telkca etlkca ltkeca tlkeca lkteca klteca tkleca ktleca lektca elktca lketca kletca ekltca keltca teklca etklca tkelca ktelca ektlca ketlca altekc latekc atlekc talekc ltaekc tlaekc aletkc laetkc aeltkc ealtkc leatkc elatkc atelkc taelkc aetlkc eatlkc tealkc etalkc lteakc tleakc letakc eltakc telakc etlakc altkec latkec atlkec talkec ltakec tlakec alktec laktec akltec kaltec lkatec klatec atklec taklec aktlec katlec tkalec ktalec ltkaec tlkaec lktaec kltaec tklaec ktlaec alektc laektc aelktc ealktc leaktc elaktc alketc laketc akletc kaletc lkaetc klaetc aekltc eakltc akeltc kaeltc ekaltc kealtc lekatc elkatc lkeatc kleatc eklatc kelatc ateklc taeklc aetklc eatklc teaklc etaklc atkelc takelc aktelc katelc tkaelc ktaelc aektlc eaktlc aketlc kaetlc ekatlc keatlc tekalc etkalc tkealc ktealc ektalc ketalc ltekac tlekac letkac eltkac telkac etlkac ltkeac tlkeac lkteac klteac tkleac ktleac lektac elktac lketac kletac ekltac keltac teklac etklac tkelac ktelac ektlac ketlac
Note: these 'words' (valid or invalid) are all the permutations of the word caltek. These words are obtained by scrambling the letters in caltek.