use '?' for JOKER (blank)

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

9 letter words

fingerers[13]

8 letter words

fingerer[12], feigners[12], refiners[11], resigner[9]

7 letter words

feigner[11], freeing[11], reefing[11], fingers[11], fringes[11], fernier[10], refiner[10], refines[10], ferries[10], refires[10], refries[10], greisen[8], ringers[8], rerisen[7]

6 letter words

feeing[10], finger[10], fringe[10], feigns[10], friges[10], griefs[10], ferine[9], refine[9], refire[9], frisee[9], enserf[9], infers[9], freers[9], freres[9], refers[9], firers[9], friers[9], erring[7], ringer[7], genies[7], seeing[7], signee[7], genres[7], greens[7], reigns[7], renigs[7], resign[7], sering[7], signer[7], singer[7], serger[7], rerigs[7], nereis[6], seiner[6], serein[6], serine[6], rerise[6], sirree[6], rinser[6]

5 letter words

feign[9], grief[9], frigs[9], finer[8], infer[8], freer[8], frere[8], refer[8], firer[8], frier[8], rifer[8], fines[8], neifs[8], feres[8], frees[8], reefs[8], fires[8], fries[8], frise[8], reifs[8], serif[8], ferns[8], firns[8], genie[6], genre[6], green[6], reign[6], renig[6], rerig[6], siege[6], genes[6], segni[6], sengi[6], singe[6], egers[6], grees[6], reges[6], serge[6], girns[6], grins[6], rings[6], seine[5], siree[5], ernes[5], sneer[5], reins[5], resin[5], rinse[5], risen[5], serin[5], siren[5], serer[5], riser[5]

4 letter words

frig[8], figs[8], fine[7], neif[7], fere[7], free[7], reef[7], fire[7], reif[7], rife[7], fern[7], firn[7], fees[7], seif[7], fens[7], fins[7], refs[7], serf[7], firs[7], rifs[7], gene[5], gien[5], eger[5], gree[5], girn[5], grin[5], ring[5], gees[5], egis[5], gies[5], engs[5], gens[5], negs[5], gins[5], sign[5], sing[5], ergs[5], regs[5], rigs[5], erne[4], rein[4], esne[4], seen[4], sene[4], sine[4], rees[4], seer[4], sere[4], ires[4], reis[4], rise[4], sire[4], erns[4], rins[4], errs[4]

3 letter words

fig[7], fee[6], fie[6], fen[6], fin[6], fer[6], ref[6], fir[6], rif[6], efs[6], fes[6], ifs[6], gee[4], gie[4], eng[4], gen[4], neg[4], gin[4], erg[4], reg[4], rig[4], seg[4], nee[3], ere[3], ree[3], ire[3], rei[3], ern[3], rin[3], err[3], see[3], sei[3], ens[3], sen[3]