use '?' for JOKER (blank)

From letters B, E, S, T, U, D, D, I, N, G  I made following words

10 letter words

bestudding[15]

8 letter words

beddings[13], buddings[13], debuting[12], studding[11], dungiest[10]

7 letter words

bedding[12], budding[12], buddies[11], budgies[11], budgets[11], tedding[10], besting[10], beduins[10], subedit[10], subtend[10], bundist[10], dustbin[10], busting[10], tubings[10], distend[9], nidgets[9], sueding[9], dueting[9], studdie[9], studied[9], dusting[9], dunites[8], gunites[8]

6 letter words

budged[11], bidden[10], binged[10], budgie[10], bunged[10], budges[10], debugs[10], disbud[10], budget[10], dinged[9], begins[9], beings[9], binges[9], bedsit[9], bidets[9], debits[9], guided[9], dunged[9], nudged[9], beduin[9], duding[9], busied[9], busing[9], bunted[9], tubing[9], bestud[9], busted[9], debuts[9], bundts[9], deigns[8], design[8], dinges[8], signed[8], singed[8], dinted[8], nidget[8], tinged[8], digest[8], indued[8], guides[8], guised[8], sudden[8], nudges[8], dingus[8], dunted[8], dusted[8], degust[8], gusted[8], subnet[8], teinds[7], ingest[7], signet[7], tinges[7], indues[7], nudies[7], undies[7], genius[7], dunite[7], united[7], untied[7], gunite[7], duties[7], suited[7], nudest[7], tendus[7], nudist[7], tenuis[6], unites[6], unties[6]

5 letter words

bided[9], gibed[9], budge[9], debug[9], begin[8], being[8], binge[8], bides[8], gibes[8], bends[8], binds[8], bidet[8], debit[8], debts[8], begun[8], unbid[8], bused[8], bunds[8], bungs[8], debut[8], tubed[8], bundt[8], dined[7], nided[7], deign[7], dinge[7], sided[7], bines[7], dings[7], tided[7], didst[7], bites[7], bents[7], bints[7], guide[7], nudge[7], undid[7], dudes[7], gudes[7], guids[7], dungs[7], butes[7], tubes[7], bunts[7], dines[6], nides[6], snide[6], segni[6], sengi[6], singe[6], teind[6], tined[6], tinge[6], deist[6], diets[6], dites[6], edits[6], sited[6], stied[6], tides[6], gites[6], dents[6], tends[6], gents[6], dints[6], sting[6], tings[6], indue[6], nudie[6], guise[6], dunes[6], nudes[6], genus[6], negus[6], nidus[6], suing[6], using[6], tendu[6], tuned[6], duets[6], guest[6], duits[6], dunts[6], stung[6], tungs[6], inset[5], neist[5], nites[5], senti[5], stein[5], tines[5], unite[5], untie[5], etuis[5], suite[5], tunes[5], unset[5], suint[5], units[5]

4 letter words

bide[7], gibe[7], died[6]