use '?' for JOKER (blank)

From letters E, N, G, R, O, S, S, E, R  I made following words

9 letter words

engrosser[10]

7 letter words

engross[8], regress[8], sergers[8], grosser[8], senores[7], snorers[7], sorners[7]

6 letter words

genres[7], greens[7], genros[7], goners[7], serger[7], rogers[7], gnoses[7], segnos[7], egress[7], serges[7], gorses[7], ogress[7], rerose[6], snorer[6], sorner[6], sneers[6], eroses[6], senors[6], sensor[6], snores[6]

5 letter words

genre[6], green[6], genro[6], goner[6], roger[6], genes[6], ogees[6], segno[6], egers[6], grees[6], reges[6], serge[6], goers[6], gores[6], gorse[6], ogres[6], gesso[6], segos[6], snogs[6], songs[6], gross[6], ernes[5], sneer[5], erose[5], senor[5], snore[5], serer[5], sorer[5], esnes[5], sense[5], noses[5], sones[5], erses[5], seers[5], seres[5], roses[5], sores[5], sorns[5]

4 letter words

gene[5], ogee[5], gone[5], eger[5], gree[5], ergo[5], goer[5], gore[5], ogre[5], gees[5], engs[5], gens[5], negs[5], egos[5], goes[5], sego[5], nogs[5], snog[5], song[5], ergs[5], regs[5], segs[5], erne[4], esne[4], seen[4], sene[4], eons[4], noes[4], nose[4], ones[4], sone[4], rees[4], seer[4], sere[4], erns[4], eros[4], ores[4], roes[4], rose[4], sore[4], sorn[4], errs[4], eses[4], sees[4], ness[4], oses[4], sons[4], sers[4]

3 letter words

gee[4], eng[4], gen[4], neg[4], ego[4], nog[4], erg[4], reg[4], gor[4], seg[4], gos[4], nee[3], eon[3], one[3], ere[3], ree[3], ern[3], ore[3], roe[3], nor[3], err[3], see[3], ens[3], sen[3], oes[3], ose[3], nos[3], ons[3], son[3], ers[3], res[3], ser[3], ors[3], ess[3], sos[3]

2 letter words

go[3], en[2], ne[2], oe[2], no[2], on[2], er[2], re[2], or[2], es[2], os[2], so[2]