use '?' for JOKER (blank)

From letters F, L, O, R, I, F, E, R, O, U, S, N, E, S, S  I made following words

15 letter words

floriferousness[21]

11 letter words

floriferous[17], furrinesses[14]

10 letter words

solferinos[13], foulnesses[13], oleoresins[10]

9 letter words

snifflers[15], snufflier[15], effusions[15], siffleurs[15], snufflers[15], sufferers[15], felonries[12], fooleries[12], rooflines[12], solferino[12], felonious[12], fluorenes[12], fluorines[12], fusileers[12], reinfuses[12], fluoroses[12], fluorosis[12], furriness[12], fulnesses[12], oleoresin[9], looseners[9], lionesses[9], noiseless[9], selenosis[9], looseness[9], sorriness[9], erroneous[9], selenious[9], nurseries[9], reinsures[9], lousiness[9], surliness[9], reissuers[9]

8 letter words

sniffler[14], rifflers[14], offerers[14], reoffers[14], offerors[14], sniffles[14], offenses[14], sniffers[14], rufflier[14], effusion[14], siffleur[14], snuffier[14], snuffler[14], sufferer[14], rufflers[14], snuffles[14], souffles[14], snuffers[14], roofline[11], felonies[11], olefines[11], refiners[11], floorers[11], floosies[11], fireless[11], rifeness[11], fernless[11], flensers[11], fresnels[11], flossier[11], roofless[11], finesses[11], selfness[11], flossies[11], flossers[11], frissons[11], fluorene[11], fluorine[11], fusileer[11], reinfuse[11], sneerful[11], fleurons[11], fluorins[11], surefire[11], ferrules[11], flurries[11], ferreous[11], foreruns[11], senseful[11], foulness[11], sulfones[11], infusers[11], sunroofs[11], refusers[11], friseurs[11], fuseless[11], fissures[11], eloiners[8], loosener[8], loriners[8], reinless[8], erosions[8], rosinols[8], roseries[8], enosises[8], noesises[8], noseless[8], soleness[8], rissoles[8], soreness[8], rosiness[8], reinsure[8], selenous[8], elusions[8], unlooses[8], leisures[8], enuresis[8], soilures[8], neuroses[8], neurosis[8], resinous[8], rosinous[8], reissuer[8], slurries[8], ensurers[8], insurers[8], soleuses[8], reissues[8], seisures[8], sureness[8], sunrises[8], sourness[8]

7 letter words

offline[13], riffler[13], offerer[13], reoffer[13], offeror[13], sniffle[13], offense[13], riffles[13], niffers[13], sniffer[13], olefine[10], fernier[10], refiner[10], floorer[10], forlorn[10], felines[10], oneself[10], olefins[10], floosie[10], foliose[10], ferlies[10], refiles[10], reflies[10], reliefs[10], refines[10], flenser[10], fresnel[10], florins[10], roofies[10], ferries[10], refires[10], refries[10], ferrels[10], riflers[10], rolfers[10], reroofs[10], roofers[10], finesse[10], flenses[10], finless[10], flossie[10], foisons[10], frisees[10], eloiner[7], loonier[7], onerier[7], loriner[7], oleines[7], loonies[7], liernes[7], relines[7], nerolis[7], orioles[7], erosion[7], rosinol[7], reliers[7], rerisen[7], lorries[7], ironers[7], enisles[7], ensiles[7], seniles[7], eosines[7], insoles[7], lesions[7], lioness[7], loosens[7], solions[7], ireless[7]