use '?' for JOKER (blank)

From letters A, D, V, E, N, T, U, R, E, R  I made following words

10 letter words

adventurer[14]

9 letter words

adventure[13], unaverted[13], nervature[12], renatured[10], underrate[10]

8 letter words

ventured[12], taverner[11], venturer[11], denature[9], underate[9], undereat[9], returned[9], renature[8]

7 letter words

ravened[11], averred[11], averted[11], verdant[11], verdure[11], vaunted[11], ravener[10], nervate[10], veteran[10], averter[10], nervure[10], vaunter[10], venture[10], retread[8], treader[8], endurer[8], daunter[8], natured[8], unrated[8], untread[8], denture[8], retuned[8], tenured[8], terrane[7]

6 letter words

evader[10], reaved[10], nerved[10], vender[10], advent[10], vented[10], advert[10], vendue[10], reaver[9], tavern[9], venter[9], revert[9], avenue[9], earned[7], endear[7], neared[7], dearer[7], reader[7], reared[7], redear[7], reread[7], darner[7], errand[7], render[7], anteed[7], derate[7], redate[7], teared[7], ardent[7], ranted[7], rented[7], tender[7], darter[7], retard[7], tarred[7], trader[7], unread[7], endure[7], enured[7], tundra[7], turned[7], earner[6], nearer[6], reearn[6], entera[6], neater[6], retear[6], tearer[6], terrae[6], errant[6], ranter[6], renter[6], rerent[6], nature[6], neuter[6], retune[6], tenure[6], tureen[6], ureter[6], return[6], turner[6]

5 letter words

deave[9], eaved[9], evade[9], daven[9], vaned[9], drave[9], raved[9], duvet[9], veena[8], venae[8], reave[8], raven[8], nerve[8], never[8], raver[8], event[8], avert[8], trave[8], evert[8], revet[8], venue[8], revue[8], vaunt[8], vertu[8], eared[6], denar[6], redan[6], ender[6], darer[6], drear[6], rared[6], erred[6], anted[6], dater[6], derat[6], rated[6], tared[6], trade[6], tread[6], deter[6], treed[6], trend[6], endue[6], undee[6], nuder[6], under[6], durra[6], ruder[6], etude[6], daunt[6], tendu[6], tuned[6], trued[6], arene[5], ranee[5], reran[5], eaten[5], enate[5], arete[5], eater[5], antre[5], enter[5], rente[5], terne[5], treen[5], rater[5], tarre[5], terra[5], enure[5], urare[5], rerun[5], urate[5], tuner[5], truer[5]

4 letter words

dean[5], dene[5], need[5], dare[5], dear[5], read[5], deer[5], dere[5], dree[5], rede[5], reed[5], darn[5], nard[5], rand[5], nerd[5], rend[5], date[5], deet[5], teed[5], earn[4], near[4], erne[4], rare[4], rear[4], ante[4], etna[4], neat[4]