mecks emcks mceks cmeks ecmks cemks mekcs emkcs mkecs kmecs ekmcs kemcs mckes cmkes mkces kmces ckmes kcmes eckms cekms ekcms kecms ckems kcems mecsk emcsk mcesk cmesk ecmsk cemsk mesck emsck mseck smeck esmck semck mcsek cmsek mscek smcek csmek scmek ecsmk cesmk escmk secmk csemk scemk meksc emksc mkesc kmesc ekmsc kemsc meskc emskc msekc smekc esmkc semkc mksec kmsec mskec smkec ksmec skmec eksmc kesmc eskmc sekmc ksemc skemc mckse cmkse mkcse kmcse ckmse kcmse mcske cmske mscke smcke csmke scmke mksce kmsce mskce smkce ksmce skmce cksme kcsme cskme sckme kscme skcme ecksm ceksm ekcsm kecsm ckesm kcesm ecskm ceskm esckm seckm csekm scekm ekscm kescm eskcm sekcm ksecm skecm cksem kcsem cskem sckem kscem skcem
Note: these 'words' (valid or invalid) are all the permutations of the word mecks. These words are obtained by scrambling the letters in mecks.