use '?' for JOKER (blank)

From letters K, A, T, Z, E, N, J, A, M, M, E, R, S  I made following words

13 letter words

katzenjammers[36]

12 letter words

katzenjammer[35]

10 letter words

amazements[22]

9 letter words

amazement[21], teamakers[15], armaments[13]

8 letter words

marksman[16], marksmen[16], serjeant[15], namesake[14], teamaker[14], meerkats[14], armament[12], ammeters[12], metamers[12], mantrams[12], emanates[10], manatees[10], amreetas[10], sarmenta[10], arsenate[8], serenata[8]

7 letter words

mamzers[19], jammers[18], ramjets[16], tarzans[15], sejeant[14], kamseen[13], seamark[13], remakes[13], meerkat[13], markets[13], sneaker[11], meatman[11], meatmen[11], ammeter[11], metamer[11], retaken[11], mantram[11], karates[11], retakes[11], stammer[11], stemmer[11], kantars[11], rankest[11], tankers[11], meaners[9], renames[9], emanate[9], enemata[9], manatee[9], amreeta[9], ramenta[9], meanest[9], remates[9], reteams[9], steamer[9], mantras[9], martens[9], sarment[9], smarten[9], aerates[7], santera[7], earnest[7], eastern[7], nearest[7]

6 letter words

mamzer[18], jammer[17], sanjak[17], amazes[16], mazers[16], matzas[16], ramjet[15], jetsam[15], razees[14], tarzan[14], stanza[14], ersatz[14], zester[14], sejant[13], jester[13], remake[12], karmas[12], makars[12], markas[12], makers[12], masker[12], kermes[12], market[12], merman[10], mermen[10], akenes[10], skeane[10], rakees[10], emmers[10], kernes[10], karate[10], retake[10], kantar[10], tanker[10], stemma[10], emmets[10], askant[10], tankas[10], kentes[10], karats[10], skater[10], strake[10], streak[10], takers[10], streek[10], tranks[10], meaner[8], rename[8], seaman[8], enemas[8], mensae[8], seamen[8], arames[8], ameers[8], ramees[8], seamer[8], namers[8], remans[8], ramate[8], remate[8], reteam[8], mantra[8], marten[8], atmans[8], manats[8], mantas[8], aments[8], mantes[8], stamen[8], armets[8], master[8], maters[8], matres[8], ramets[8], stream[8], tamers[8], merest[8], meters[8], metres[8], retems[8], anears[6], arenas[6], arenes[6], ranees[6], aerate[6], entera[6], neater[6], ansate[6], enates[6], sateen[6], senate[6], reatas[6], aretes[6], easter[6], eaters[6], reseat[6], seater[6], teaser[6], ratans[6], antres[6], astern[6], sterna[6], enters[6], nester[6], renest[6], rentes[6], resent[6], tenser[6], ternes[6], treens[6]

5 letter words

jakes[16], karma[11], makar[11], marka[11], maker[11], kames[11], makes[11], akene[9], rakee[9], emmer[9], kerne[9], akees[9], enema[7], arame[7], ameer[7], ramee[7], namer[7], ramen[7], reman[7], areae[5], anear[5], arena[5], arene[5], ranee[5]