use '?' for JOKER (blank)

From letters U, N, D, E, R, S, I, D, E  I made following words

9 letter words

underside[11], undesired[11]

8 letter words

denuders[10], sundered[10]

7 letter words

neddies[9], derides[9], desired[9], resided[9], reddens[9], denuder[9], endured[9], undried[9], denudes[9], dudeens[9], duendes[9], deniers[8], nereids[8], resined[8], residue[8], ureides[8], endures[8], ensured[8], insured[8]

6 letter words

denied[8], indeed[8], deride[8], redden[8], rended[8], ridden[8], rinded[8], eddies[8], sended[8], denude[8], dudeen[8], duende[8], endued[8], indued[8], durned[8], sueded[8], sudden[8], udders[8], druids[8], siddur[8], denier[7], nereid[7], reined[7], denies[7], dienes[7], seined[7], desire[7], eiders[7], reside[7], denser[7], enders[7], resend[7], sender[7], diners[7], rinsed[7], snider[7], ureide[7], endure[7], enured[7], inured[7], ruined[7], endues[7], ensued[7], indues[7], nudies[7], undies[7], reused[7], diseur[7], nursed[7], sunder[7], nereis[6], seiner[6], serein[6], serine[6], ensure[6], enures[6], insure[6], inures[6], rusine[6], urines[6], ursine[6]

5 letter words

ended[7], dined[7], nided[7], dreed[7], reded[7], dried[7], redid[7], deeds[7], sided[7], redds[7], undid[7], dured[7], udder[7], druid[7], dudes[7], rudds[7], diene[6], eider[6], ender[6], diner[6], denes[6], dense[6], needs[6], dines[6], nides[6], snide[6], deers[6], drees[6], redes[6], reeds[6], seder[6], sered[6], dries[6], resid[6], rides[6], sired[6], nerds[6], rends[6], rinds[6], endue[6], undee[6], indue[6], nudie[6], nuder[6], under[6], suede[6], dunes[6], nudes[6], nidus[6], druse[6], dures[6], ursid[6], durns[6], nurds[6], seine[5], siree[5], ernes[5], sneer[5], reins[5], resin[5], rinse[5], risen[5], serin[5], siren[5], enure[5], inure[5], urine[5], ensue[5], reuse[5], sieur[5], nurse[5], runes[5], ruins[5]

4 letter words

deed[6], died[6], redd[6], eide[5], dene[5], need[5], deni[5], dine[5], nide[5], deer[5], dere[5], dree[5], rede[5], reed[5], dire[5], ired[5], ride[5], nerd[5], rend[5], rind[5], dees[5], seed[5], dies[5], ides[5], side[5], dens[5], ends[5], send[5], sned[5], dins[5], reds[5], rids[5], erne[4], rein[4], esne[4], seen[4], sene[4], sine[4], rees[4], seer[4], sere[4], ires[4], reis[4]